What are some short, funny jokes?

One example of a short joke is "Light travels faster than sound; this is why some people appear bright until you hear them speak." Another example is "I childproofed the house, but they still get in!"

Short, one-line jokes are good for sharing with co-workers or sending through text messages and social media websites. They come in a variety of categories such as parenting, old age, political and religious-themed. Additional categories include puns, sports and mother-in-law jokes. A pun is a type of joke that plays with the different meanings of one word or words that sound similar. One example of a pun is "What does a grammarian call Santa's helpers? Subordinate Clauses."