NUMBERS RIDDLES

This collection contains a small set of extremely short, number riddles which can be solved in just a few minutes. Are you up for the number challenge?

Numbers Riddles

How Many Times Can You Subtract The Number 5 From 25
Riddle: How many times can you subtract the number 5 from 25?
Answer: Once, because after you subtract 5 from 25 it becomes 20.
Numbers Riddles

What Two Whole, Positive Numbers Have A One-digit Answer When Multiplied
Riddle: What two whole, positive numbers have a one-digit answer when multiplied and a two-digit answer when added?
Answer: 1 and 9.

Numbers Multiplied And Added Riddle
Riddle: What two whole, postive numbers have the same answer when multiplied together as when added together?
Answer: 2 and 2.
Numbers Riddles

Three Numbers Multiplied And Added Riddle
Riddle: What three whole, positive numbers have the same answer when multiplied together as when added together?
Answer: 1, 2 and 3.  1 x 2 x 3 = 1 + 2 + 3 = 6.

What Two Whole, Positive Numbers Have The Same Answer When Multiplied Together As When One Is Divided By The Other?
Riddle: What two whole, positive numbers have the same answer when multiplied together as when one is divided by the other?
Answer: Any number and 1.
Numbers Riddles

Numbers Multiplied And Doubled Riddle
Riddle: What two-digit number equals two times the result of multiplying its digits?
Answer: 36 = 2 x 3 x 6.

Number Squared Riddle
Riddle: What two-digit numbers are each equal to their right-most digit squared?
Answer: 25 = 5² and 36 = 6².
Numbers Riddles

Number Zero Riddle
Riddle: What number can you subtract half from to obtain a result of zero?
Answer: The number 8.  It's made up of two zeros, one on top of the other.

Hight Three Digit Number Riddle
Riddle: What is the highest number that can be written with three digits?
Answer: (9⁹)⁹ = 9³⁸⁷⁴²⁰⁴⁸⁹, which is a number with more than 369 million digits.
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Numbers Riddles Answers:

  1. Once, because after you subtract 5 from 25 it becomes 20.
  2. 1 and 9.
  3. 2 and 2.
  4. 1, 2 and 3.  1 x 2 x 3 = 1 + 2 + 3 = 6.
  5. Any number and 1.
  6. 36 = 2 x 3 x 6.
  7. 25 = 5² and 36 = 6².
  8. The number 8.  It's made up of two zeros, one on top of the other.
  9. (9⁹)⁹ = 9³⁸⁷⁴²⁰⁴⁸⁹, which is a number with more than 369 million digits.