Answer:
David's father has three sons: Snap, Crackle and?
They made me a mouth, but didn't give me breath. Water gives me life, but the sun brings me death.
What is black when it is clean and white when it is dirty?
What do you call a bear with no teeth?
4 rubber ducks were floating in the bathtub, 2 floated away and 2 drowned. How many ducks are still alive?
What goes around and around the wood, but never goes into the wood?