Knock, Knock.
Who's there? The Most Hilarious Jokes For Your 9 Year Old Well, that might not be the funniest joke you have heard, but the rest of our 100 jokes for kids 9 years old will make your little ones cry from laughter Here's The Ultimate Joke Book For 9-Year-Olds Who Love To Laugh Want to make your 9-year old laugh like a hyena? Looking for a clean, family-friendly joke book for kids 8.