None. Monkeys screw in trees.
It depends on the definition of lightbulb.
Just one, but they get extra credits for it
Five. It's a huge problem.
Camembert!
Marijuana
Because he was drunk Why did the second monkey fall out of the tree? He was tied to the first one Why did the third monkey fall out of the tree? Peer Pressure
A monkey. What key opens a carrot? A donkey.