What does the Eiffel Tower have in common with a tick?
What is black when clean, and white when dirty?
Why didn't the clam share its food?
What is brown and sticky?
What did Bill's father answer when Bill asked if he understood what an eclipse is?
What travels around the whole world and stays in the corner?
Why is it hard to trust a staircase?
What phrase explains the importance of making a will?
What happens to a snowman that gets angry?
What looks like white paint and smells like blue paint?
What happens if two silk worms have a race?