What are good knock knock jokes?

Answer:
Knock Knock. Who's there? Cow's Go. Cow's Go Who? No, Cow's Go Moo.
Knock Knock. Who's there. Banana. Banana who. Knock knock. Whos there. Banana who. (Repeat Multiple times). Knock knock. who's there. Orange. Orange who. Orange ya glad I didn't say banana?
First answer by ID0406720739. Last edit by ID0406720739. Question popularity: 1 [recommend question].