Numbers are everywhere around us, from the time we wake up to the moment we go to bed. But did you know they can be a source of endless fun and brain-teasing challenges? Welcome to a world where numbers aren’t just for calculations—they’re for riddles!
In this collection of 70+ riddles about numbers with answers, you’ll find a mix of easy, tricky, and twisted puzzles that will test your wits and bring out the math lover in you. Whether you’re looking for a fun activity for kids, a challenge for adults, or just a way to sharpen your mind, these number riddles are sure to entertain and educate. Ready to start cracking these numerical mysteries? Let’s dive in!
Best Riddles About Numbers
- Riddle: What number do you get when you multiply all the numbers on a telephone’s number pad?
Answer: Zero 0️⃣ - Riddle: What can you put between 7 and 8 to get a number greater than 7 but less than 8?
Answer: A decimal point (7.8) ➗ - Riddle: How many letters are in the alphabet?
Answer: Eleven (in “the alphabet”) 🔠 - Riddle: What 3 positive numbers give the same answer when multiplied and added together?
Answer: 1, 2, and 3 ➕ - Riddle: If two’s company and three’s a crowd, what are four and five?
Answer: Nine 9️⃣ - Riddle: What number is odd but becomes even when you take away a letter?
Answer: Seven (remove the ‘s’) 7️⃣ - Riddle: What gets wetter as it dries?
Answer: A towel 🧺 - Riddle: What number is the same read upside down?
Answer: 8 8️⃣ - Riddle: What 4-digit number is half of 8, but when doubled, is 2?
Answer: 0.5 ✋
Easy Riddles About Numbers with Answers
- Riddle: I’m a number, but if you add an ‘s’, I’m many. What am I?
Answer: Six 6️⃣ - Riddle: If two is a company and three is a crowd, what are five and six?
Answer: Eleven 1️⃣1️⃣ - Riddle: What number can you add to itself and still get zero?
Answer: Zero 0️⃣ - Riddle: I’m a number, yet I’m not odd. What am I?
Answer: Even 🔢 - Riddle: What is a number that stays the same when multiplied by itself?
Answer: One 1️⃣ - Riddle: What number becomes smaller when you turn it upside down?
Answer: Nine 9️⃣ - Riddle: I’m a number between 1 and 2, but you can only find me in decimals. What am I?
Answer: 1.5 🔢 - Riddle: What number is between 5 and 6 but greater than 7?
Answer: 8 8️⃣ - Riddle: What number gets bigger when you subtract one?
Answer: Negative numbers ➖ - Riddle: What number is half of 10 but twice as big as 3?
Answer: Five 5️⃣ - Riddle: I’m a number that has no value but adds value when you put me at the end of another number. What am I?
Answer: Zero 0️⃣ - Riddle: I’m an even number, but if you remove a letter, I’m odd. What am I?
Answer: Four (remove ‘f’) 4️⃣ - Riddle: What number follows you but can never catch up?
Answer: Your age 🎂 - Riddle: I’m a number, but I’m not whole. What am I?
Answer: A fraction ➗
Hard Riddles About Numbers with Answers
- Riddle: I’m a two-digit number. My tens digit is twice my units digit, and when added together, they equal 12. What am I?
Answer: 84 🔢 - Riddle: What three positive numbers give the same result when multiplied and added together?
Answer: 1, 2, and 3 ➕ - Riddle: I’m a prime number and also the sum of two squares. What am I?
Answer: 13 (9+4) 🔢 - Riddle: What is the smallest number divisible by all the numbers from 1 to 10?
Answer: 2520 🔢 - Riddle: What is the only even prime number?
Answer: Two 2️⃣ - Riddle: I’m an odd number, but if you take away one letter, I become even. What am I?
Answer: Seven (remove the ‘s’) 7️⃣ - Riddle: I’m a number whose square is even but whose cube is odd. What am I?
Answer: Two 2️⃣ - Riddle: The number 8,549,176,320 is a unique number. What makes it unique?
Answer: It contains each digit from 0 to 9 exactly once 🔢 - Riddle: I’m a three-digit number. The digits add up to 15, and the difference between the hundreds digit and the units digit is 2. What am I?
Answer: 582 🔢 - Riddle: I’m a number, but when squared, I give a palindrome. What am I?
Answer: 11 (121) 🔢 - Riddle: I’m a number that divides evenly into all even numbers. What am I?
Answer: Two 2️⃣ - Riddle: What number is one less than twice its reverse?
Answer: 19 (twice 91 = 182, 182 – 1 = 181) 🔢 - Riddle: I’m a number that is not divisible by any other number except one and myself. What am I?
Answer: A prime number 🔢 - Riddle: I’m a number that becomes 30 when you add one quarter of it to itself. What am I?
Answer: 24 🔢 - Riddle: I’m a number whose digits, when reversed and subtracted from the original number, give a result divisible by 9. What am I?
Answer: Any number 🔢
Tricky Riddles About Numbers with Answers
- Riddle: What number can be written in both Roman numerals and Arabic numerals and still be the same?
Answer: Ten (X) 🔢 - Riddle: I’m a number that, when divided by its reverse, gives a whole number. What am I?
Answer: 1089 (198/891 = 9) 🔢 - Riddle: What number is the product of all positive numbers?
Answer: Zero (0 multiplied by any number is 0) 0️⃣ - Riddle: I’m a number that, when squared, gives a number twice my original value. What am I?
Answer: 2 (√2 is approximately 1.414, squared is 2) 2️⃣ - Riddle: What number, when added to its square, gives the same result as 9 times the original number?
Answer: 3 🔢 - Riddle: What is the smallest number that is evenly divisible by both 12 and 15?
Answer: 60 🔢 - Riddle: I’m a number that, when added to the number that comes after me, gives 1. What am I?
Answer: Negative one ➖ - Riddle: I’m a two-digit number where the sum of the digits is 10 and the difference is 4. What am I?
Answer: 73 🔢 - Riddle: What number is the result of multiplying its reverse by 9?
Answer: 1089 (198 x 9 = 1782) 🔢 - Riddle: What number, when subtracted from itself, gives a number greater than zero?
Answer: Any negative number 🔢 - Riddle: I’m a number that, when cubed, gives a result of 1 less than my square. What am I?
Answer: Two 2️⃣ - Riddle: I’m a number that, when multiplied by 5, gives the same result as adding 50 to me. What am I?
Answer: 10 🔢 - Riddle: What number can be written forward, backward, and still be the same when turned upside down?
Answer: 69 🔢 - Riddle: What is the next number in the sequence 1, 4, 9, 16?
Answer: 25 🔢 - Riddle: I’m a number that, when doubled and reversed, gives the same number. What am I?
Answer: 11 (reversed is still 11) 🔢
Twisted Riddles About Numbers
- Riddle: I’m a number that, when multiplied by 9 and then reversed, gives a palindrome. What am I?
Answer: 1089 (198 x 9 = 1782, reversed is 2781) 🔢 - Riddle: What number is the product of its digits and the sum of its digits?
Answer: 9 (3 x 3 = 9, 3 + 3 = 6) 🔢 - Riddle: I’m a number that becomes smaller when divided by its square root. What am I?
Answer: Any number greater than 1 🔢 - Riddle: What number, when squared, gives a result ending in the same number?
Answer: Any number ending in 5 (e.g., 25, 625) 5️⃣ - Riddle: I’m a number that, when added to its reverse, gives a palindrome. What am I?
Answer: 12 (12 + 21 = 33) 🔢 - Riddle: What is the square root of a number that is not a perfect square but gives an integer when divided by 2?
Answer: 2 (√4 = 2) 2️⃣ - Riddle: I’m a number that, when multiplied by its half, gives a result equal to its square. What am I?
Answer: 2 2️⃣ - Riddle: What number is one-third of its triple?
Answer: Any number 🔢 - Riddle: I’m a number that, when cubed, gives a palindrome. What am I?
Answer: 1 (1 cubed is 1) 🔢 - Riddle: What number is both the sum and the difference of two primes?
Answer: 5 (5 = 3+2 and 5 = 7-2) 🔢 - Riddle: What number can be divided by its reverse and still give a whole number?
Answer: 1089 (198/891 = 9) 🔢 - Riddle: What number, when squared, gives a result with a digit sum of 9?
Answer: Any number divisible by 3 🔢 - Riddle: I’m a number that, when cubed, gives a result with a digit sum of 1. What am I?
Answer: 1 1️⃣ - Riddle: What number is equal to the sum of the digits of its square?
Answer: 45 (45 x 45 = 2025, 2+0+2+5=9) 🔢 - Riddle: I’m a number that is the product of its prime factors. What am I?
Answer: Any number 🔢
Riddles About Numbers for Kids
- Riddle: What is the smallest even number?
Answer: Two 2️⃣ - Riddle: What number comes after 7?
Answer: Eight 8️⃣ - Riddle: What number is the same in Roman numerals and Arabic numerals?
Answer: Ten (X) 🔢 - Riddle: What number is a dozen?
Answer: Twelve 1️⃣2️⃣ - Riddle: What number is between 4 and 6?
Answer: Five 5️⃣ - Riddle: What number is half of 4?
Answer: Two 2️⃣ - Riddle: What is double 5?
Answer: Ten 1️⃣0️⃣ - Riddle: What number is a pair of threes?
Answer: Six 6️⃣ - Riddle: What number is a dozen minus two?
Answer: Ten 1️⃣0️⃣ - Riddle: What number is ten plus five?
Answer: Fifteen 1️⃣5️⃣ - Riddle: What number is one more than eleven?
Answer: Twelve 1️⃣2️⃣ - Riddle: What number is one less than nine?
Answer: Eight 8️⃣ - Riddle: What number is a century minus fifty?
Answer: Fifty 5️⃣0️⃣ - Riddle: What number is a baker’s dozen?
Answer: Thirteen 1️⃣3️⃣ - Riddle: What number is five pairs?
Answer: Ten 1️⃣0️⃣
Riddles About Numbers for Adults
- Riddle: What number is a prime that is also a square?
Answer: There isn’t one 🔢 - Riddle: What number is an even number squared?
Answer: Any even number’s square 🔢 - Riddle: What number is one-third of three times itself?
Answer: Any number 🔢 - Riddle: What number, when added to itself, equals its square?
Answer: 2 2️⃣ - Riddle: What number is the result of the sum of two even numbers?
Answer: Any even number 🔢 - Riddle: What number is the sum of the first five prime numbers?
Answer: 28 🔢 - Riddle: What number is the result of multiplying its digits together?
Answer: 0 if it includes a 0 0️⃣ - Riddle: What number is a sum of its digits?
Answer: Any number divisible by 9 🔢 - Riddle: What number is the smallest odd prime?
Answer: Three 3️⃣ - Riddle: What number is the sum of three consecutive odd numbers?
Answer: Any odd number 🔢 - Riddle: What number is both a square and a cube?
Answer: 1 🔢 - Riddle: What number is equal to the sum of the digits of its square?
Answer: 9 🔢 - Riddle: What number is equal to its square divided by itself?
Answer: Any non-zero number 🔢 - Riddle: What number is both even and divisible by 5?
Answer: 10 1️⃣0️⃣ - Riddle: What number is the result of the product of three primes?
Answer: Any number divisible by 6 🔢
Conclusion:
Numbers are not just for calculations; they offer endless possibilities for fun and challenge. These riddles demonstrate how numbers can be twisted, turned, and manipulated to create puzzles that intrigue both kids and adults. Whether you’re seeking an easy brain-teaser or a complex problem, these number riddles are a great way to test your wits. Enjoy cracking these numerical mysteries! 🎉
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