Answer:
Why do turkeys get full on Thanksgiving?
What room in your house do ghosts avoid?
Arnold Schwarzenegger has a big one, Michael J Fox has a small one, Madonna doesn't have one, The pope has one but he never uses it, Bill Clinton has one and he uses it all the time! What is it?
What do birds say when they fly home?
How can a pants pocket be empty, but still have something in it?
You throw me out when you use me and take me in when you are done.