Who cleans the ocean floor?

A Mer-Maid.

Why did the girl spread peanut butter on the road?

To go with the traffic jam!

Danny, caught off-guard, yells at his roommate, "Dude! Why are you taking a bath with the bathroom door open?"

His roommate David replies, "I'm making sure no one is looking at me through keyhole."

Professor: "Why do pimples make horrible prisoners?"

Student: "Because they keep breaking out!"