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## Number Riddles: The purpose of this collection is to entertain the brain. The correct answer to this set of number riddles isn't always the obvious one. Print these number riddles and add some fun to your kid's lunch or use them as a fun riddle exercise for the classroom. Enjoy!

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