Good kid joke. Lame adult joke. Knock knock. Who's there? Salad. Salad who? It's the salad! Lettuce in!

Knock knock...(from my 6 year old) Who's there? "Little girl". Little girl, who? "Little girl who can't reach the door knob".

Jokes you used to tell as a kid Knock knock Who's there? Interrupting cow Interrupting c- MOOOOOOO

New Knock-Knock joke? Child: Knock Knock Grandmother: Who's there? Child: [Insert Name] Grandmother: [Insert Name] who? Child: Oh no! You have Alzheimer's! Yes? No?