Good Clean Knock-Knock Jokes for Kids

What can steer a parent toward insanity faster than the phrase "Are we there yet?" ...the words "Knock, Knock," of course. Bob Phillips, comic genius, has mastered a gathering of knock, knock jokes that will have kids laughing hysterically-and parents just plain hysterical-but a family that knock, knocks together, grows together.
Knock, Knock
Who's There?
Olive.
Olive who?
Olive to tell knock-knock jokes.
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