Knock knock.
Who's there?
A little old lady.
A little old lady who?
We didn't know you could yodel.
OK, stop rolling your eyes. The truth is nobody really knows the exact history of the knock-knock joke. Shakespeare did have a "Knock knock. Who's there?" line in "Macbeth," but there's no evidence to suggest it spawned a new path in comedy.
The jokes we're familiar with today are popular in the United States as well as France, Canada, Australia, the United Kingdom, and South Africa. Knock-knock jokes are fun, if somewhat corny. But we like them because they often involve a play on words, and don't require too much thinking. The real challenge is coming up with a unique one that's also at least a little funny.
We'll leave you with one of our favorites...
Knock knock.
Who's there?
Control freak. Now you say, "control freak who?"
