Charles Keller Books
Norma Lee I Don't Knock on Doors: Knock, Knock Jokes
A collection of knock-knock jokes such as, "Knock Knock. Who's there? Europe. Europe who? Europe to no good."
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Ohm on the Range: Robot and Computer Jokes
A collection of robot and computer jokes and riddles.
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Remember the A La
A collection of old and new riddles, including "What did the piece of pie say to the man who was about to eat it?"
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