Clean riddles for teens with simple answers

A little pool with two layers of wall around it. One white and soft and the other dark and hard, amidst a light brown grassy lawn with an outline of a green grass. What am I?

What two things can you never eat for breakfast?

Armored but not a knight, snapping but not a twig, and always at home, even on the move. What am I?

What is harder to catch the faster you run?

How do you make the number 7 an even number without addition, subtraction, multiplication, or division?

The cost of making only the maker knows, Valueless if bought, but sometimes traded. A poor man may give one as easily as a king. When one is broken pain and deceit are assured.

I am an odd number; take away a letter and I become even. What number am I?

It’s been around for millions of years, but it’s no more than a month old. What is it?

I'm a fruit. If you take away my first letter, I'm a crime. If you take away my first two letters, I'm an animal. If you take away my first and last letters, I'm a form of music. What am I?

What letter is next in this sequence? M, A, M, J, J, A, S, O,__