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?
How far will a blind dog walk into a forest?
When are you most likely to see through a man?
This both describes gorgeous woman and an excellent punch.
What did the left hand say to the right hand after the test?
What is always coming but never arrives?
Funny
Animal
Difficult
Easy
Food
Kids
Logic
What am I?