Wacky Jokes for 12-Year-Old Kids by Joshua Shifrin With hundreds of funny, clean, hilarious one-liners, knock-knock jokes, tongue twisters, riddles, and incredible facts that kids love, this lively collection is sure to keep you in stitches. Q: Why did the banana have to go to the doctor? A: Because he wasn't peeling well. Knock knock. Who's there? Mary. Mary who? Mary Christmas! Q: The more you take away, the more I become. What am I? A: A hole...