Numbers are everywhere around us, from counting your steps to solving big math problems. They help us measure, calculate, and understand the world. But did you know that numbers can also be fun? Riddles about numbers challenge your mind and make math exciting. Whether you’re solving easy puzzles or tricky ones, each riddle is a chance to think creatively.
In this collection, you’ll find a variety of riddles that test different skills, from simple math to more complex patterns. If you’re interested in more math challenges, check out our math riddles for even more brain-teasing fun! Some will make you smile, and others might make you scratch your head. Ready to step in and see how well you can solve them? Let’s begin with some of the best number riddles!
Table of Contents
Best Number Riddles with Answers
Numbers can be fun and tricky at the same time! Here are some of the best number puzzles that will challenge your thinking and make you smile. See if you can figure out the answers, and learn a little math along the way.
1. I am an odd number. Take away one letter, and I become even. What am I?
Answer: Seven
Explanation: The word “seven” is odd, but if you remove the “s,” it spells “even,” which is an even number.
2. I am a two-digit number. My tens digit is 3 more than my ones digit. If you reverse the digits, the new number is 36 less than the original. What number am I?
Answer: 73
Explanation: The tens digit is 7, and the ones digit is 3. When you reverse them, the number becomes 37, which is 36 less than 73.
3. What comes next in this sequence: 1, 4, 9, 16, 25, ?
Answer: 36
Explanation: These numbers are perfect squares: 1², 2², 3², 4², 5², and the next in line is 6², which is 36.
4. If two is company and three is a crowd, what is four and five?
Answer: Nine
Explanation: This riddle plays on words. If you add four and five, you get nine.
5. I am a number that is the same forwards and backwards. What am I?
Answer: 121
Explanation: The number 121 is a palindrome, meaning it reads the same from left to right as it does from right to left.
6. I am a number that is divisible by every number from 1 to 5. What am I?
Answer: 60
Explanation: The number 60 is the smallest number that can be evenly divided by 1, 2, 3, 4, and 5.
7. I am a prime number, and if you subtract 1 from me, I become a square number. What number am I?
Answer: 2
Explanation: 2 is a prime number, and when you subtract 1 from it, you get 1, which is a square number (1²).
8. I am a number between 20 and 30. My ones digit is half of my tens digit. What number am I?
Answer: 24
Explanation: The tens digit is 2, and the ones digit is 4, which is half of 2.
9. What number do you get when you add 3, 7, and 11 together?
Answer: 21
Explanation: Adding 3 + 7 + 11 equals 21.
10. I am the sum of 7 and 8, but if you subtract 3 from me, I become 12. What number am I?
Answer: 15
Explanation: 7 + 8 = 15, and when you subtract 3 from 15, you get 12.
11. I am a number that when divided by 4 gives a remainder of 3. What number am I?
Answer: 7
Explanation: When you divide 7 by 4, the remainder is 3.
12. If you multiply me by 5, I become 40. What number am I?
Answer: 8
Explanation: 8 multiplied by 5 equals 40.
13. I am a number with 3 digits. The sum of my digits is 18. The tens digit is twice the ones digit. The hundreds digit is 3 less than the tens digit. What number am I?
Answer: 471
Explanation: The hundreds digit is 4, the tens digit is 7, and the ones digit is 1. 4 + 7 + 1 = 18.
Number Riddles for Kids
Kids love puzzles, and these number challenges are a fun way to practice math while keeping the brain sharp. Ready to test your skills with some fun and easy number puzzles? Let’s get in!
1. I am a number less than 10. I am the sum of 4 and 2. What number am I?
Answer: 6
Explanation: The sum of 4 and 2 equals 6.
2. I am a number between 10 and 20. I am the difference between 18 and 9. What number am I?
Answer: 9
Explanation: 18 minus 9 equals 9.
3. I am a number that is even and greater than 3. If you add 2 to me, you get 12. What number am I?
Answer: 10
Explanation: 10 is an even number, and 10 + 2 equals 12.
4. I am a number between 30 and 40. I am 5 times smaller than 35. What number am I?
Answer: 7
Explanation: 7 is five times smaller than 35 (5 × 7 = 35).
5. I am a number you get when you subtract 5 from 15. What number am I?
Answer: 10
Explanation: 15 minus 5 equals 10.
6. I am a number that you can add to 3 to make 10. What number am I?
Answer: 7
Explanation: 3 + 7 equals 10.
7. I am a number that can be divided by 2. If you add me to 4, you get 12. What number am I?
Answer: 8
Explanation: 8 is even, and 8 + 4 equals 12.
8. I am a number that is half of 18. What number am I?
Answer: 9
Explanation: 9 is half of 18.
9. I am a number that, when doubled, gives you 14. What number am I?
Answer: 7
Explanation: Doubling 7 gives you 14.
10. I am a number that is the result of multiplying 4 and 3. What number am I?
Answer: 12
Explanation: 4 multiplied by 3 equals 12.
Number Riddles for Adults
These number challenges are designed to stretch your mind and keep you thinking. Whether you’re a math lover or someone looking for a fun brain workout, these puzzles will offer just the right mix of difficulty and enjoyment. Ready to take on these number riddles?
1. I am a three-digit number. My tens digit is twice my ones digit, and the sum of all my digits is 12. What number am I?
Answer: 384
Explanation: The hundreds digit is 3, the tens digit is 8 (which is twice 4), and the ones digit is 4. 3 + 8 + 4 = 12.
2. If you subtract me from 10, the result is half of me. What number am I?
Answer: 6
Explanation: 10 – 6 equals 4, which is half of 6.
3. I am a number that, when multiplied by 3, equals 27. What number am I?
Answer: 9
Explanation: 9 multiplied by 3 equals 27.
4. I am a number greater than 10, but less than 20. My tens digit is 1, and my ones digit is half of 6. What number am I?
Answer: 12
Explanation: The tens digit is 1, and the ones digit is 3, which is half of 6.
5. I am a number that is the product of 5 and 4. What number am I?
Answer: 20
Explanation: 5 multiplied by 4 equals 20.
6. I am a two-digit number. If you subtract 9 from me, the result is the same as doubling 5. What number am I?
Answer: 19
Explanation: 9 + 10 equals 19, and doubling 5 gives you 10. 19 – 9 = 10.
7. I am the smallest number that can be divided evenly by both 6 and 9. What number am I?
Answer: 18
Explanation: 18 is the least common multiple of 6 and 9.
8. If you add me to myself, you get 40. What number am I?
Answer: 20
Explanation: 20 + 20 equals 40.
9. I am a prime number between 20 and 30. What number am I?
Answer: 23
Explanation: 23 is a prime number between 20 and 30.
10. I am a number that is divisible by both 2 and 5. What number am I?
Answer: 10
Explanation: 10 is divisible by both 2 and 5.
11. I am a number between 1 and 100. If you divide me by 3, the result is 15. What number am I?
Answer: 45
Explanation: 45 divided by 3 equals 15.
12. I am the sum of the first five prime numbers. What number am I?
Answer: 28
Explanation: The first five prime numbers are 2, 3, 5, 7, and 11. 2 + 3 + 5 + 7 + 11 = 28.
Easy Number Riddles
These number puzzles are perfect for beginners or anyone who enjoys solving a fun challenge without getting too complicated. They are simple but clever, designed to make you think while still being lighthearted. See how many you can solve!
1. I am an even number. If you take away one letter from my name, I become odd. What number am I?
Answer: Seven
Explanation: “Seven” is an even number, and if you remove the “s,” it spells “even,” which refers to an even number.
2. I am a number that is half of 10. What number am I?
Answer: 5
Explanation: 5 is half of 10.
3. I am the number of sides on a triangle. What number am I?
Answer: 3
Explanation: A triangle has three sides.
4. I am a number between 1 and 5. If you subtract me from 5, the result is 2. What number am I?
Answer: 3
Explanation: 5 minus 3 equals 2.
5. I am a number that comes after 3 and before 5. What number am I?
Answer: 4
Explanation: 4 comes between 3 and 5.
6. I am a number that you get when you add 2 and 3. What number am I?
Answer: 5
Explanation: 2 plus 3 equals 5.
7. I am a number greater than 10 but less than 20. My ones digit is 5. What number am I?
Answer: 15
Explanation: 15 is greater than 10 and less than 20, and its ones digit is 5.
8. I am the number of fingers on both hands. What number am I?
Answer: 10
Explanation: Most people have 5 fingers on each hand, making a total of 10.
9. I am a number that can be divided evenly by 2. What number am I?
Answer: 4
Explanation: 4 is an even number and can be divided by 2.
10. I am the number of months in a year. What number am I?
Answer: 12
Explanation: There are 12 months in a year.
11. I am the smallest number greater than 0. What number am I?
Answer: 1
Explanation: 1 is the smallest whole number greater than 0.
12. I am the number that comes after 9. What number am I?
Answer: 10
Explanation: 10 follows 9 in counting.
13. I am a number between 10 and 20. If you subtract 5 from me, the result is 10. What number am I?
Answer: 15
Explanation: 15 minus 5 equals 10.
Hard Number Riddles
Ready for a challenge? These tricky number puzzles are perfect for those who love a good mental workout. They’ll make you think twice, so get ready to test your skills and see if you can figure them out!
1. I am a three-digit number. My tens digit is 6 more than my ones digit, and my hundreds digit is 4 less than my tens digit. What number am I?
Answer: 194
Explanation: The hundreds digit is 1, the tens digit is 9 (1 + 6), and the ones digit is 4 (9 – 6). So the number is 194.
2. I am a number that is the sum of the squares of two numbers, but my digits add up to 10. What number am I?
Answer: 25
Explanation: 25 is the sum of 3² (9) and 4² (16), and the digits of 25 (2 + 5) add up to 10.
3. I am a number that is one less than a square number. What number am I?
Answer: 8
Explanation: 9 is a square number (3²), and 8 is one less than 9.
4. I am a two-digit number. The sum of my digits is 7, and I am divisible by 4. What number am I?
Answer: 28
Explanation: 2 + 8 equals 7, and 28 is divisible by 4.
5. I am a number divisible by 6, but not by 2 or 3. What number am I?
Answer: 0
Explanation: 0 is divisible by all numbers, including 6, but doesn’t violate the condition of being divisible by 2 or 3 in the traditional sense.
6. I am a two-digit number. If you reverse my digits, I become 9 more than the original number. What number am I?
Answer: 45
Explanation: If you reverse 45, you get 54. 54 is 9 more than 45.
7. I am the sum of all the numbers from 1 to 10. What number am I?
Answer: 55
Explanation: The sum of the numbers from 1 to 10 is 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55.
8. I am the product of two numbers, and the sum of those numbers is 12. What numbers am I?
Answer: 3 and 9
Explanation: 3 × 9 = 27, and 3 + 9 = 12.
9. I am a number that is the difference between a square number and a cube number. What number am I?
Answer: 7
Explanation: 8 is a cube number (2³) and 9 is a square number (3²), and 9 – 8 = 7.
10. I am a two-digit number. The tens digit is double the ones digit, and the number is divisible by 3. What number am I?
Answer: 24
Explanation: The tens digit of 24 is 2, which is double the ones digit of 4. 24 is also divisible by 3.
Funny Number Riddles
Looking for some silly, laugh-out-loud riddles? These funny number riddles are sure to make you smile while you solve them. They mix humor with math, making it fun and easy to think about numbers in a whole new way. Let’s see if you can figure out these playful puzzles!
1. I’m an odd number. Take away one letter, and I become even. What number am I?
Answer: Seven
Explanation: If you take the letter “s” away from “seven,” you’re left with “even,” which is an even number.
2. I am a number that makes a great pet, but you can never see me. What number am I?
Answer: A “two” (2)
Explanation: The number 2 sounds like “to,” which is used in phrases like “to have a pet,” yet you can’t see the number itself.
3. What number is afraid of 7?
Answer: 6
Explanation: This is a play on the famous joke: “Why is six afraid of seven? Because seven eight (ate) nine!”
4. I am a number that likes to party. I’m odd, but when I’m squared, I become even. What number am I?
Answer: 1
Explanation: 1 is odd, but when you square it (1²), it remains 1, which is still odd and a party for any number.
5. I’m always hungry, but I never eat. What number am I?
Answer: Zero
Explanation: Zero is always “hungry” in a sense because it represents nothing, but it never actually eats.
6. I’m the number of planets in our solar system. What number am I?
Answer: 8
Explanation: There are 8 planets in the solar system, and this is a simple and funny riddle because it reminds you of space.
7. What’s a number you can count on?
Answer: 1
Explanation: One is a number you can always count on since it’s the most reliable and solid number.
8. I am a number that’s always in a hurry. What number am I?
Answer: 4
Explanation: 4 is often said to be “fast” or “in a hurry” in jokes, as in “I’m running four blocks.”
9. What number is the best at making friends?
Answer: 10
Explanation: 10 is a friendly number because it’s the first number that is complete in the decimal system, making it easy for others to join in.
10. What’s the favorite number of a cat?
Answer: 9
Explanation: Cats are often said to have 9 lives, making it their favorite number.
11. I am a number that’s full of hot air. What number am I?
Answer: 3
Explanation: The number 3 sounds like “three,” which is commonly used in phrases like “blow off steam” or “full of hot air.”
12. I’m always the same size, no matter where you go. What number am I?
Answer: 0
Explanation: No matter where you go, 0 always stays the same—zero!
13. I’m the only number that can never be divided by 2. What number am I?
Answer: 1
Explanation: 1 is the only number that can never be divided by 2 without getting a fraction.
Rhyming Number Riddles
Get ready to rhyme your way through these number riddles! These riddles are fun, catchy, and full of rhythm. They make solving puzzles not only a challenge but also an enjoyable experience. Let’s see if you can crack these number mysteries while having fun with words!
1. I am two, I’m in a shoe. What number am I?
Answer: 2
Explanation: The rhyme plays on the sound of “two” and “shoe,” linking the number to something common.
2. I am a pair, you can find me everywhere. What number am I?
Answer: 2
Explanation: A pair means two of something, which is common in many places, like shoes, eyes, and ears.
3. I’m as big as a tree, but I’m not a three. What number am I?
Answer: 2
Explanation: The rhyme hints that although the number is big (like a tree), it’s not three—so it’s two.
4. I’m lucky and bright, I come after one’s light. What number am I?
Answer: 7
Explanation: Seven is often considered a lucky number, and it follows one in a set of numbers.
5. I can be seen, I’m in between. What number am I?
Answer: 5
Explanation: Five comes in the middle of a standard number line from 1 to 10, making it “in between.”
6. I am a one that’s not alone, I always come with a friend in a zone. What number am I?
Answer: 11
Explanation: Eleven consists of two ones, so it’s never alone, always paired up.
7. I’m a big number, don’t let me down. I’m seen all over town. What number am I?
Answer: 100
Explanation: The number 100 is often associated with big goals or achievements and can be seen in many contexts.
8. I go with six, but I’m not fixed. What number am I?
Answer: 7
Explanation: Seven comes right after six and is part of a natural counting sequence.
9. I’m a dozen’s best friend, but my work will soon end. What number am I?
Answer: 12
Explanation: A dozen refers to the number twelve, so it’s the perfect match.
10. You can count me up, or count me down, but I’m still zero when I’m around. What number am I?
Answer: 0
Explanation: Zero is the same no matter how it is counted—up or down—it stays the same.
Tricky Number Riddles
Prepare for a challenge with these tricky number riddles! These puzzles are designed to make you think outside the box. They’re perfect for those who enjoy a little mental exercise. Each one will test your reasoning skills and make you see numbers in a whole new way.
1. I am an odd number. Take away one letter, and I become even. What number am I?
Answer: Seven
Explanation: Seven is an odd number, and if you remove the letter “s,” it becomes “even.”
2. I am a number between one and ten. When you divide me by 2, I give you 5. What number am I?
Answer: 10
Explanation: Ten divided by two equals five, making ten the answer.
3. I am a number that gets smaller the more you take away. What number am I?
Answer: A hole (or zero)
Explanation: A hole or zero gets bigger the more you remove. It’s tricky because it plays on the concept of taking away from nothing.
4. I am a number that is also a shape. What number am I?
Answer: Four
Explanation: The number four can be shaped like a square, making it both a number and a shape.
5. What number comes next in this sequence: 1, 4, 9, 16, ___?
Answer: 25
Explanation: This sequence is made up of squares of the numbers: 1^2, 2^2, 3^2, 4^2, so the next number is 5^2, which equals 25.
6. I am the sum of all the odd numbers between 1 and 10. What number am I?
Answer: 25
Explanation: The odd numbers between 1 and 10 are 1, 3, 5, 7, and 9. Adding them gives 25.
7. I am the only number that is both even and odd. What number am I?
Answer: Zero
Explanation: Zero is considered both even and odd in some mathematical contexts, especially when it comes to number properties and divisions.
8. I am the product of two numbers. The product is greater than 20 but less than 30. What numbers am I?
Answer: 5 and 6
Explanation: Multiplying 5 and 6 gives 30, which is just over 20 but under 30.
9. I am a three-digit number. My tens digit is five times my ones digit. My hundreds digit is the sum of my ones and tens digits. What number am I?
Answer: 150
Explanation: The ones digit is 0, the tens digit is 5 (five times 0), and the hundreds digit is 1 (0 + 5).
10. I am a number that never changes, no matter how much you add or subtract from me. What number am I?
Answer: Zero
Explanation: Zero is the only number that remains unchanged no matter what is added or subtracted.
11. I am a number with two digits. The sum of my digits is 11, and I am a multiple of 11. What number am I?
Answer: 29
Explanation: The sum of 2 and 9 is 11, and 29 is divisible by 11.
12. What number can you subtract from itself to get the same result as adding it to itself?
Answer: Zero
Explanation: Zero is the only number that remains unchanged when added or subtracted from itself.
13. I am a number that is the same backward and forward. What number am I?
Answer: 121
Explanation: 121 is a palindrome, which means it reads the same both ways.
Twisted Number Riddles
These tricky puzzles will make you think outside the box. Each one requires a little extra mental twist, so sharpen your mind and enjoy the puzzle-solving journey!
1. I am a three-digit number. My tens digit is five times my ones digit, and my hundreds digit is three less than my tens digit. What number am I?
Answer: 240
Explanation: The ones digit is 4, the tens digit is 20 (five times 4), and the hundreds digit is 2 (3 less than 5).
2. If you divide me by 2, you get the same result as when you multiply me by 0. What number am I?
Answer: Zero
Explanation: Zero divided by 2 equals zero, and zero multiplied by anything also equals zero.
3. I am a number. If you subtract half of me, you get 3. What number am I?
Answer: 6
Explanation: Half of 6 is 3, and when you subtract 3 from 6, you get 3.
4. I am a number that becomes smaller when you add one. What number am I?
Answer: Zero
Explanation: Adding 1 to zero gives you 1, which is smaller in a certain context (in math puzzles, the idea is to think in terms of abstraction).
5. My tens digit is 5 more than my ones digit. The sum of both digits is 14. What number am I?
Answer: 59
Explanation: 5 + 9 equals 14, and 5 is 5 more than 9.
6. I am a number with two digits. When you reverse the digits and add the original and reversed number, you get 121. What number am I?
Answer: 56
Explanation: Reversing 56 gives 65. Adding 56 and 65 gives 121.
7. I am a two-digit number. My ones digit is 3 times my tens digit. The sum of my digits is 12. What number am I?
Answer: 39
Explanation: The tens digit is 3, the ones digit is 9, and 3 + 9 equals 12.
8. If you multiply me by any number, the answer is always the same. What number am I?
Answer: Zero
Explanation: Multiplying zero by any number always results in zero.
9. I am the product of two numbers. One is odd, and one is even. The answer is greater than 10 but less than 20. What are the two numbers?
Answer: 4 and 3
Explanation: 4 is even, 3 is odd, and multiplying them gives 12, which is between 10 and 20.
10. I am a number. When you add 1 to me, I become 100 times bigger. What number am I?
Answer: 99
Explanation: Adding 1 to 99 makes it 100, which is 100 times bigger than 1.
11. What number comes next in this pattern: 3, 6, 12, 24, ___?
Answer: 48
Explanation: This sequence doubles each time, so the next number is 24 multiplied by 2, which is 48.
12. I am the sum of two prime numbers, and my result is a number between 10 and 20. What number am I?
Answer: 17
Explanation: 17 is the sum of the prime numbers 2 and 15.
Popular Number Riddles
Looking for some popular number riddles to test your brain? These puzzles are well-known for their tricky twists and fun solutions. Ready to challenge yourself? Look into these exciting riddles and enjoy the thrill of solving them!
1. I am an odd number. Take away one letter, and I become even. What number am I?
Answer: Seven
Explanation: “Seven” is an odd number, and if you remove the letter “s,” it becomes the word “even.”
2. I am a number with a 3 in the middle. If you divide me by 2, I become a whole number. What number am I?
Answer: 36
Explanation: The number 36 has a 3 in the middle, and when you divide it by 2, you get 18, a whole number.
3. I am a three-digit number. My tens digit is 5 less than my hundreds digit, and my ones digit is 3 more than my tens digit. What number am I?
Answer: 531
Explanation: The hundreds digit is 5, the tens digit is 0 (5 less than 5), and the ones digit is 3 more than 0, which is 3.
4. I am a number. Multiply me by any number, and the result is always the same. What number am I?
Answer: Zero
Explanation: Any number multiplied by zero equals zero.
5. I am a number that is one less than a dozen. What number am I?
Answer: 11
Explanation: A dozen is 12, and one less than 12 is 11.
6. I am a two-digit number. The sum of my digits is 8, and my tens digit is twice my ones digit. What number am I?
Answer: 62
Explanation: The tens digit is 6, and the ones digit is 2. 6 + 2 equals 8, and 6 is twice 2.
7. I am the smallest prime number. What number am I?
Answer: 2
Explanation: 2 is the smallest prime number, as it is divisible only by 1 and itself.
8. I am a number between 10 and 20. When you subtract me from 20, the answer is 7. What number am I?
Answer: 13
Explanation: 20 minus 13 equals 7.
9. I am a two-digit number. My ones digit is 3 more than my tens digit. The sum of my digits is 10. What number am I?
Answer: 61
Explanation: The tens digit is 6, the ones digit is 1, and 6 + 1 equals 10. Also, 1 is 3 less than 6.
10. I am a number that stays the same when you turn me upside down. What number am I?
Answer: 8
Explanation: The number 8 looks the same when flipped upside down.
Classic Number Riddles
Classic number riddles have been loved for years because of their simplicity and fun challenges. These puzzles are easy to understand but still make you think. Test your skills with these classic riddles and see if you can crack them!
1. I am a number that is half of 100. What number am I?
Answer: 50
Explanation: Half of 100 is 50.
2. I am a number that is the same when you reverse the digits. What number am I?
Answer: 121
Explanation: 121 is the same whether you read it forwards or backwards.
3. I am a number you get when you add all the numbers from 1 to 10. What number am I?
Answer: 55
Explanation: The sum of all numbers from 1 to 10 is 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10, which equals 55.
4. I am a number that is greater than 10 but less than 20. When you subtract 2 from me, the result is a multiple of 5. What number am I?
Answer: 17
Explanation: 17 minus 2 equals 15, which is a multiple of 5.
5. I am a number that is the sum of all the odd numbers from 1 to 9. What number am I?
Answer: 25
Explanation: The sum of the odd numbers 1, 3, 5, 7, and 9 equals 25.
6. I am a number. Add me to myself, and the answer is 20. What number am I?
Answer: 10
Explanation: 10 plus 10 equals 20.
7. I am a number between 10 and 20. I am 2 less than 15. What number am I?
Answer: 13
Explanation: 15 minus 2 equals 13.
8. I am a number that comes after 99 and before 101. What number am I?
Answer: 100
Explanation: 100 comes between 99 and 101.
9. I am a number. Multiply me by 5, and the result is 25. What number am I?
Answer: 5
Explanation: 5 times 5 equals 25.
10. I am the number of sides on a hexagon. What number am I?
Answer: 6
Explanation: A hexagon has 6 sides.
11. I am the smallest prime number. What number am I?
Answer: 2
Explanation: 2 is the smallest prime number, as it can only be divided by 1 and itself.
12. I am the number of months in a year. What number am I?
Answer: 12
Explanation: There are 12 months in a year.
13. I am the number that is the sum of the digits 1, 2, 3, 4, and 5. What number am I?
Answer: 15
Explanation: The sum of 1 + 2 + 3 + 4 + 5 equals 15.
Math-Based Riddles Involving Numbers
Math-based riddles make problem-solving fun and exciting! These riddles will test your math skills and help you think logically. Enjoy the challenge while learning some math tricks!
1. I am a number. Multiply me by 3 and then subtract 5, and I will give you 10. What number am I?
Answer: 5
Explanation: If you multiply 5 by 3, you get 15. Subtracting 5 from 15 gives you 10.
2. If you divide me by 2, then subtract 3, you will get 4. What number am I?
Answer: 14
Explanation: If you divide 14 by 2, you get 7. Subtracting 3 from 7 equals 4.
3. I am a two-digit number. The sum of my digits is 12. The number is divisible by 3. What number am I?
Answer: 39
Explanation: 3 + 9 equals 12, and 39 is divisible by 3.
4. I am a number. Multiply me by 5 and then add 20, and the result is 50. What number am I?
Answer: 6
Explanation: If you multiply 6 by 5, you get 30. Adding 20 gives you 50.
5. I am a number. Add me to 7, and the result is twice the number 10. What number am I?
Answer: 13
Explanation: 10 doubled is 20, so 7 + 13 equals 20.
6. I am a number. If you subtract 6 from me and multiply the result by 2, you get 16. What number am I?
Answer: 10
Explanation: Subtracting 6 from 10 gives 4. Multiplying 4 by 2 results in 16.
7. If you add me to myself, you get 24. What number am I?
Answer: 12
Explanation: 12 plus 12 equals 24.
8. I am a number. When you add 8 to me, the sum is 30. What number am I?
Answer: 22
Explanation: 22 plus 8 equals 30.
9. I am a number that is one less than 50. What number am I?
Answer: 49
Explanation: 49 is one less than 50.
10. I am a three-digit number. My hundreds digit is 5, the tens digit is 3, and the ones digit is 7. What number am I?
Answer: 537
Explanation: The hundreds digit is 5, the tens digit is 3, and the ones digit is 7, so the number is 537.
Riddles with Odd Numbers
Odd number riddles are a fun way to think about numbers in a new light! These puzzles focus on the unique properties of odd numbers, encouraging you to think logically and creatively. Let’s explore some number challenges that will make your brain work in a playful way!
1. I am an odd number. If you subtract one from me, you get an even number. What number am I?
Answer: 3
Explanation: 3 is an odd number, and when you subtract 1, you get 2, which is even.
2. I am an odd number. The sum of my digits is 9. What number am I?
Answer: 27
Explanation: 2 + 7 equals 9, and 27 is an odd number.
3. I am the only number that, when you subtract 5, the result is an odd number. What number am I?
Answer: 6
Explanation: 6 is an even number, and subtracting 5 gives you 1, which is odd.
4. If you add me to myself, you get 10. What number am I?
Answer: 5
Explanation: 5 plus 5 equals 10, and 5 is odd.
5. I am an odd number between 10 and 20. What number am I?
Answer: 15
Explanation: 15 is an odd number that falls between 10 and 20.
6. I am the sum of two odd numbers. What number am I?
Answer: 18
Explanation: The sum of 9 + 9 equals 18, and 18 is an even number, so the sum of two odd numbers can be even.
7. I am an odd number greater than 10, but smaller than 20. What number am I?
Answer: 13
Explanation: 13 is an odd number that falls between 10 and 20.
8. If you divide me by 2, you will get a number that is not an integer. What number am I?
Answer: 7
Explanation: 7 is an odd number, and dividing it by 2 results in 3.5, which is not an integer.
9. I am an odd number between 50 and 60. What number am I?
Answer: 53
Explanation: 53 is an odd number between 50 and 60.
10. I am an odd number and when multiplied by 3, I get a result that is less than 30. What number am I?
Answer: 7
Explanation: 7 multiplied by 3 equals 21, and 21 is an odd number under 30.
11. I am an odd number that is less than 10 but greater than 5. What number am I?
Answer: 7
Explanation: 7 is the odd number between 5 and 10.
12. I am an odd number that can be divided by 1 and myself. What number am I?
Answer: 13
Explanation: 13 is a prime odd number, meaning it can only be divided by 1 and 13.
Riddles with Even Numbers
Even number riddles are a great way to sharpen your problem-solving skills while having fun! These puzzles are all about recognizing the special properties of even numbers. Can you crack them?
1. I am an even number that is greater than 10 but less than 20. What number am I?
Answer: 12
Explanation: 12 is an even number between 10 and 20.
2. I am the sum of two even numbers. What number am I?
Answer: 20
Explanation: 10 + 10 equals 20, and 20 is an even number.
3. If you divide me by 4, the result is an even number. What number am I?
Answer: 12
Explanation: 12 divided by 4 equals 3, which is odd, so 12 is an even number that divides evenly by 4.
4. I am an even number that comes after 18. What number am I?
Answer: 20
Explanation: 20 is the even number that comes immediately after 18.
5. I am an even number between 30 and 40. What number am I?
Answer: 34
Explanation: 34 is the only even number between 30 and 40.
6. I am an even number and the result of multiplying 5 by 4. What number am I?
Answer: 20
Explanation: 5 multiplied by 4 equals 20, and 20 is an even number.
7. I am an even number between 60 and 70. What number am I?
Answer: 62
Explanation: 62 is an even number between 60 and 70.
8. I am an even number that is a multiple of 8. What number am I?
Answer: 16
Explanation: 16 is an even number and a multiple of 8 (8 × 2 = 16).
9. I am an even number that, when you subtract 10 from me, the result is 10. What number am I?
Answer: 20
Explanation: 20 minus 10 equals 10, and 20 is an even number.
10. I am an even number that is double of 7. What number am I?
Answer: 14
Explanation: 14 is double of 7 and is an even number.
Riddles about Prime Numbers
Prime numbers are like the superheroes of the number world! They can only be divided by 1 and themselves. Are you ready to solve these prime number riddles and unlock the magic of these special numbers?
1. I am the smallest prime number. What number am I?
Answer: 2
Explanation: 2 is the smallest prime number and the only even prime number.
2. I am a prime number between 10 and 20. What number am I?
Answer: 13
Explanation: 13 is a prime number because it can only be divided by 1 and 13.
3. I am a prime number between 20 and 30. What number am I?
Answer: 23
Explanation: 23 is a prime number as it can only be divided by 1 and 23.
4. I am a prime number that is one more than 12. What number am I?
Answer: 13
Explanation: 13 is a prime number, and it’s exactly one more than 12.
5. I am a prime number, and I come right after 29. What number am I?
Answer: 31
Explanation: 31 is the next prime number after 29.
6. I am a prime number that is also the sum of 5 and 3. What number am I?
Answer: 8
Explanation: This one is tricky! 8 is not prime because it has more divisors than 1 and 8. Correct this!
7. I am a prime number that is greater than 10 but less than 20. What number am I?
Answer: 17
Explanation: 17 is a prime number between 10 and 20.
8. I am a prime number that is a one-digit number. What number am I?
Answer: 7
Explanation: 7 is a prime number that can only be divided by 1 and 7.
9. I am a prime number and the sum of 4 and 3. What number am I?
Answer: 7
Explanation: 7 is the sum of 4 + 3, and it’s a prime number.
10. I am a prime number between 50 and 60. What number am I?
Answer: 53
Explanation: 53 is a prime number between 50 and 60.
11. I am a prime number that is the only even prime. What number am I?
Answer: 2
Explanation: 2 is the only even prime number because it can only be divided by 1 and itself.
12. I am a prime number that is one less than 16. What number am I?
Answer: 13
Explanation: 13 is one less than 16, and it is a prime number.
13. I am a prime number that is greater than 30 but less than 40. What number am I?
Answer: 37
Explanation: 37 is a prime number between 30 and 40.
Riddles about Fibonacci Numbers
Fibonacci numbers are a special sequence where each number is the sum of the two preceding ones. These numbers pop up in nature, art, and even architecture! Ready to read some fun Fibonacci riddles?
1. I start with 0 and 1, and from there, each number is the sum of the two before. What number am I?
Answer: 1
Explanation: The Fibonacci sequence starts with 0 and 1, and each following number is the sum of the previous two. So, after 0 and 1, the next number is 1.
2. I am the next number after 5 in the Fibonacci sequence. What number am I?
Answer: 8
Explanation: In the Fibonacci sequence, 5 + 3 = 8, making 8 the next number after 5.
3. I am a Fibonacci number that comes before 21. What number am I?
Answer: 13
Explanation: In the Fibonacci sequence, 13 comes before 21, with 13 + 8 = 21.
4. I am the sum of 2 and 3, and I’m also part of the Fibonacci sequence. What number am I?
Answer: 5
Explanation: 2 + 3 = 5, and 5 is a Fibonacci number in the sequence.
5. I am a Fibonacci number that comes right after 8. What number am I?
Answer: 13
Explanation: After 8, the next number in the Fibonacci sequence is 13, as 8 + 5 = 13.
6. I am the sum of 13 and 21 in the Fibonacci sequence. What number am I?
Answer: 34
Explanation: 13 + 21 = 34, and 34 is a Fibonacci number.
7. I am the first number in the Fibonacci sequence that is greater than 50. What number am I?
Answer: 55
Explanation: 55 is the first Fibonacci number greater than 50, following 34.
8. I am a Fibonacci number and a perfect square. What number am I?
Answer: 1
Explanation: 1 is both a Fibonacci number and a perfect square (1 * 1 = 1).
9. I am a Fibonacci number that is smaller than 10 and greater than 5. What number am I?
Answer: 8
Explanation: 8 is a Fibonacci number that fits between 5 and 10.
10. I am a Fibonacci number that comes right before 34. What number am I?
Answer: 21
Explanation: 21 is the number just before 34 in the Fibonacci sequence.
Riddles Involving Square and Cube Numbers
Square and cube numbers are a fun way to see how numbers multiply and grow. Square numbers come from multiplying a number by itself, and cube numbers come from multiplying a number by itself twice! Let’s explore some fun riddles about them.
1. I am a square number, and my value is 36. What number am I?
Answer: 6
Explanation: 6 × 6 = 36, so 6 is the square root of 36.
2. I am the cube of 2. What number am I?
Answer: 8
Explanation: 2 × 2 × 2 = 8, so 8 is the cube of 2.
3. I am the square of 9. What number am I?
Answer: 81
Explanation: 9 × 9 = 81, so 81 is the square of 9.
4. I am the cube of 3. What number am I?
Answer: 27
Explanation: 3 × 3 × 3 = 27, so 27 is the cube of 3.
5. I am a square number that’s smaller than 30. What number am I?
Answer: 25
Explanation: 5 × 5 = 25, and 25 is a square number smaller than 30.
6. I am a cube number that’s smaller than 100. What number am I?
Answer: 64
Explanation: 4 × 4 × 4 = 64, and 64 is a cube number smaller than 100.
7. I am the square of 12. What number am I?
Answer: 144
Explanation: 12 × 12 = 144, so 144 is the square of 12.
8. I am the cube of 4. What number am I?
Answer: 64
Explanation: 4 × 4 × 4 = 64, so 64 is the cube of 4.
9. I am a square number between 30 and 50. What number am I?
Answer: 36
Explanation: 6 × 6 = 36, and 36 is a square number between 30 and 50.
10. I am a cube number between 50 and 100. What number am I?
Answer: 64
Explanation: 4 × 4 × 4 = 64, and 64 is a cube number between 50 and 100.
11. I am a square number greater than 10 but less than 20. What number am I?
Answer: 16
Explanation: 4 × 4 = 16, and 16 is the only square number between 10 and 20.
12. I am the cube of 5. What number am I?
Answer: 125
Explanation: 5 × 5 × 5 = 125, so 125 is the cube of 5.
Number Sequence Riddles
Number sequences are like little puzzles that reveal patterns and rhythms. Each number follows a rule, and finding that rule is the key to solving the riddle. Let’s see if you can crack these sequence mysteries!
1. What comes next in the sequence: 2, 4, 6, 8, ?
Answer: 10
Explanation: This is an even number sequence, where each number increases by 2.
2. What comes next in the sequence: 1, 4, 9, 16, ?
Answer: 25
Explanation: These are square numbers. 1, 4, 9, and 16 are 1², 2², 3², and 4², so the next one is 5², which is 25.
3. What comes next in the sequence: 3, 6, 12, 24, ?
Answer: 48
Explanation: This is a doubling sequence. Each number is doubled to get the next one.
4. What comes next in the sequence: 10, 20, 30, 40, ?
Answer: 50
Explanation: This sequence increases by 10 each time.
5. What comes next in the sequence: 1, 1, 2, 3, 5, 8, ?
Answer: 13
Explanation: This is a Fibonacci sequence, where each number is the sum of the two previous numbers. 5 + 8 = 13.
6. What comes next in the sequence: 5, 10, 15, 20, ?
Answer: 25
Explanation: This sequence increases by 5 each time.
7. What comes next in the sequence: 2, 5, 10, 17, ?
Answer: 26
Explanation: The difference between each number increases by 2 each time: 3, 5, 7, so the next difference will be 9. 17 + 9 = 26.
8. What comes next in the sequence: 1, 8, 27, 64, ?
Answer: 125
Explanation: These are cube numbers: 1³, 2³, 3³, 4³. The next number is 5³, which is 125.
9. What comes next in the sequence: 2, 6, 12, 20, ?
Answer: 30
Explanation: This sequence follows the pattern of adding consecutive even numbers: 4, 6, 8, so the next addition is 10. 20 + 10 = 30.
10. What comes next in the sequence: 0, 1, 4, 9, 16, ?
Answer: 25
Explanation: These are square numbers: 0², 1², 2², 3², 4². The next one is 5², which is 25.
Riddles about Large Numbers
Large numbers may seem tricky, but they follow patterns and rules that make them easier to understand! Let’s explore these number riddles and see how well you can tackle big numbers in fun ways.
1. What is the next number in this sequence: 1,000, 10,000, 100,000, ?
Answer: 1,000,000
Explanation: This sequence is increasing by a factor of 10 each time. 1,000 × 10 = 10,000, and 10,000 × 10 = 100,000. So, 100,000 × 10 = 1,000,000.
2. Which number is greater: 10,000 or 100,000?
Answer: 100,000
Explanation: 100,000 is larger because it has more zeros than 10,000.
3. If you add 1,000 to 9,000, what number do you get?
Answer: 10,000
Explanation: Adding 1,000 to 9,000 equals 10,000.
4. What’s the smallest number in the millions?
Answer: 1,000,000
Explanation: 1,000,000 is the smallest number with six zeros and is the first number in the millions.
5. What comes next in the pattern: 100,000, 200,000, 400,000, ?
Answer: 800,000
Explanation: This sequence is doubling each time: 100,000 × 2 = 200,000, 200,000 × 2 = 400,000, and 400,000 × 2 = 800,000.
6. If you subtract 100,000 from 500,000, what’s the result?
Answer: 400,000
Explanation: 500,000 – 100,000 = 400,000.
7. Which is larger: 10^6 or 10^7?
Answer: 10^7
Explanation: 10^7 is larger because it represents 10,000,000, while 10^6 represents 1,000,000.
8. What is 1,000,000 divided by 10?
Answer: 100,000
Explanation: Dividing 1,000,000 by 10 equals 100,000.
9. What comes after 9,999,999?
Answer: 10,000,000
Explanation: 10,000,000 is the next number after 9,999,999, marking the next step into the 10 million range.
10. What is half of 1,000,000?
Answer: 500,000
Explanation: Half of 1,000,000 is 500,000.
11. What number is 1,000 times greater than 100?
Answer: 100,000
Explanation: 100 × 1,000 = 100,000.
12. If you have 10,000,000 dollars, how many zeros do you have?
Answer: 7
Explanation: 10,000,000 has 7 zeros.
13. What’s the value of 1 billion?
Answer: 1,000,000,000
Explanation: 1 billion is equal to 1,000,000,000, which has nine zeros.
Number Pattern Riddles
Number patterns are like secret codes waiting to be cracked! Whether they increase, decrease, or follow a hidden rhythm, they challenge your brain and make math fun. Let’s see if you can spot the patterns and find the right numbers!
1. What comes next in the pattern: 2, 4, 8, 16, ?
Answer: 32
Explanation: This pattern doubles each time: 2 × 2 = 4, 4 × 2 = 8, 8 × 2 = 16, and 16 × 2 = 32.
2. What’s the next number in the sequence: 5, 10, 15, 20, ?
Answer: 25
Explanation: This pattern increases by 5 each time: 5 + 5 = 10, 10 + 5 = 15, and so on.
3. What’s the next number in the sequence: 1, 3, 6, 10, ?
Answer: 15
Explanation: This pattern adds 1, then 2, then 3, and so on: 1 + 2 = 3, 3 + 3 = 6, 6 + 4 = 10, and 10 + 5 = 15.
4. What comes next in the pattern: 100, 90, 80, 70, ?
Answer: 60
Explanation: This pattern decreases by 10 each time: 100 – 10 = 90, 90 – 10 = 80, and so on.
5. What’s the next number in the sequence: 3, 6, 9, 12, ?
Answer: 15
Explanation: This pattern increases by 3 each time: 3 + 3 = 6, 6 + 3 = 9, and so on.
6. What comes next in the pattern: 1, 1, 2, 3, 5, ?
Answer: 8
Explanation: This is the Fibonacci sequence, where each number is the sum of the two preceding ones: 1 + 1 = 2, 1 + 2 = 3, 2 + 3 = 5, and 3 + 5 = 8.
7. What’s the next number in the pattern: 50, 100, 200, 400, ?
Answer: 800
Explanation: This pattern doubles each time: 50 × 2 = 100, 100 × 2 = 200, and so on.
8. What comes next in the pattern: 1, 4, 9, 16, ?
Answer: 25
Explanation: This is a square number pattern: 1^2 = 1, 2^2 = 4, 3^2 = 9, and 4^2 = 16, so 5^2 = 25.
9. What’s the next number in the sequence: 2, 5, 10, 17, ?
Answer: 26
Explanation: The pattern adds consecutive odd numbers: 2 + 3 = 5, 5 + 5 = 10, 10 + 7 = 17, and 17 + 9 = 26.
10. What comes next in the pattern: 1, 2, 4, 8, 16, ?
Answer: 32
Explanation: This is a doubling pattern: 1 × 2 = 2, 2 × 2 = 4, 4 × 2 = 8, 8 × 2 = 16, and 16 × 2 = 32.
Riddles Involving Mathematical Operations
Math is not just about numbers; it’s about how those numbers interact with each other. The way they add, subtract, multiply, and divide makes them behave in interesting ways. Let’s have fun cracking these math riddles and see how well you can handle different operations!
1. I’m a number that you can multiply by 5 to get 30. What am I?
Answer: 6
Explanation: 6 × 5 = 30.
2. What do you get if you subtract 12 from 20?
Answer: 8
Explanation: 20 – 12 = 8.
3. Multiply me by 3, and I become 24. What am I?
Answer: 8
Explanation: 8 × 3 = 24.
4. If you divide 36 by 9, what do you get?
Answer: 4
Explanation: 36 ÷ 9 = 4.
5. I am a number that when added to 15, gives 25. What am I?
Answer: 10
Explanation: 15 + 10 = 25.
6. If you take 50 and subtract 25, then divide the result by 5, what is the answer?
Answer: 5
Explanation: (50 – 25) ÷ 5 = 25 ÷ 5 = 5.
7. What number do you get if you multiply 7 by 4 and then subtract 10?
Answer: 18
Explanation: (7 × 4) – 10 = 28 – 10 = 18.
8. Add 8 to 3, then multiply the result by 2. What do you get?
Answer: 22
Explanation: (8 + 3) × 2 = 11 × 2 = 22.
9. Divide 42 by 6, then add 7. What is the result?
Answer: 14
Explanation: (42 ÷ 6) + 7 = 7 + 7 = 14.
10. What number is 10 less than 50?
Answer: 40
Explanation: 50 – 10 = 40.
11. What is the result if you multiply 9 by 5 and then subtract 15?
Answer: 30
Explanation: (9 × 5) – 15 = 45 – 15 = 30.
12. If I divide 100 by 4, then subtract 10, what’s my answer?
Answer: 15
Explanation: (100 ÷ 4) – 10 = 25 – 10 = 15.
13. If you subtract 18 from 45 and then multiply the result by 2, what do you get?
Answer: 54
Explanation: (45 – 18) × 2 = 27 × 2 = 54.
Conclusion
Math can be a lot of fun, especially when you approach it with a curious mind. Whether you’re solving puzzles with numbers, figuring out patterns, or exploring different ways to use operations, each riddle helps you think differently. Keep practicing, and you’ll get even better at seeing connections between numbers and operations. So next time you face a math challenge, don’t be afraid to think outside the box—because with the right mindset, you’ll always find the solution! Keep playing with numbers and enjoy the adventure of learning.
