Answer:
When it was young, it had a tail. When it grew up, it had knees
What side of a cat has the most fur?
What lives where it cannot breathe and has a hole in its back
When they are caught, they are thrown away. When they escape, you itch all day.
What peels like an onion but still remains whole?
You use it between your head and your toes, the more it works the thinner it grows.