Answer:
What can be forever wound up but never annoyed?
What has thirteen hearts But no body or soul?
What has a bell but isn't a church. Is full of air but is not a balloon?
I go around in circles, but always straight ahead. Never complain, no matter where I am led.
I can run but not walk. Wherever I go, thought follows close behind.
You use it between your head and your toes, the more it works the thinner it grows.