Answer:
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 are the three rings off marriage?
I walk yet I have no legs
Why are foot injuries so serious?
How can people without noses smell?
When is it bad luck to see a black cat?