Riddle: A monkey, a squirrel, and a bird are racing to the top of a coconut tree. Who will get the banana first, the monkey, the squirrel, or the bird?
Answer: None of them, because you can't get a banana from a coconut tree.
Riddle: 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?