One of my favorite jokes:
Q: What's brown and sticky?
What made me think of this just now I don't know. I learned of it when a study was conducted to find the World's Funniest Joke. To save you the suspense, here it is:
A: A stick.
A couple of New Jersey hunters are out in the woods when one of them falls to the ground. He doesn't seem to be breathing, his eyes are rolled back in his head. The other guy whips out his cell phone and calls the emergency services. He gasps to the operator: “My friend is dead! What can I do?” The operator, in a calm soothing voice says: “Just take it easy. I can help. First, let's make sure he's dead.” There is a silence, then a shot is heard. The guy's voice comes back on the line. He says: “OK, now what?"Find out more here and also read the "World's Second Funniest Joke."
"There are three things which are real: God, human folly and laughter. The first two are beyond our comprehension, so we must do what we can with the third." -- John F. Kennedy