Easy

You can have it, and be at it, But it never lasts forever.

You use it between your head and your toes, the more it works the thinner it grows. What is it?

What has a head yet it never weeps, has a bed but never sleeps, can run but can not walks, and has a bank but not a cent to its name?

I cannot be felt, seen or touched; Yet I can be found in everybody; My existence is always in debate; Yet there is a style of music named after me.

Riddles and Answers