The only semi-original jest that I can claim to have invented (ca. 1996, on the way to a Boy Scout meeting):
Question: What's black, has a white or yellow stripe down the middle of its back, and goes "Cluck, cluck, cluck"?
Answer: I don't know, but it's what you get when you cross a chicken with a road!
OK, so maybe it's not really a joke --- it's a joke about a pun about a joke ....
TopicHumor - Datetag20011018