Q: Knock, knock----Who's There?----Ashe----Ashe who?
A: Bless you!
Q: Knock, knock----Who's There?----lettuce----lettuce who?
A: Lettuce in and you'll find out!
Q: Knock, knock----Who's there?----Hawaii----Hawaii who?
A: I'm fine, Hawaii you?
Q: Knock, knock----Who's there?----Orange----Orange who?
A: Orange you even going to open the door!
Q: Knock-knock----Who's there?----Gray Z----Gray Z who?
A: Gray Z mixed up kid.
Q: Knock, knock----Who's There?----Who----Who Who?
A: Is there an owl in there?
Q: Knock, knock----Who's There?----Anita----Anita who?
A: Anita to borrow a pencil.
Q: Knock, knock----Who's There?----Woo----Woo who?
A: Don't get so excited, it's just a joke.
Q: Knock, knock----Who's There?----Figs----Figs who?
A: Figs the doorbell, it's broken!
Q: Knock-knock----Who's there?----Alice----Alice who?
A: Alice fair in love and war.
Q: Knock, knock----Who's There?----Annie----Annie Who?
A: Annie thing you can do, I can do better.
Q: Knock-knock----Who's there?----Yukon----Yukon who?
A: Yukon say that again!
Q: Knock, knock----Who's There?----Boo----Boo Who?
A: Well you don't have to cry about it.
Q: Knock, knock----Who's There?----Theodore----Theodore who?
A: Theodore is stuck and it won't open!
Q: Knock-knock----Who's there?----Cher----Cher who?
A: Cher would be nice if you opened the door!
Q: Knock, knock----Who's There?----Amos----Amos who?
A: A mosquito bit me!
Q: Knock, knock----Who's There?----Police----Police Who?
A: Police let us in, it's cold out here!
Q: Knock-knock----Who's ----Amarillo----Amarillo who?
A: Amarillo nice guy.
from wedsiet ducksters.com/jokesforkids/knockknock.php