Answer:
What are the strongest days of the week?
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?
London bridge
Why did Superman flush the toilet?
What do spies where on there feet?
What did the piece of wood say when he saw the screwdriver and screws approaching?