Whos there
It's called a 'knock knock' joke.
Knock knock...
Joke Teller: Knock-knock! Joke Receiver: Who's there? Joke Teller: Interrupting cow. Joke Receiver: Interrupting c-- Joke Teller: Moo!!!! :]
knock knock Who's there? Yes, it was indeed Shakespear that invented the knock knock joke, first using the format in one of his plays. Possibly, anyway.
because some people forget the joke and/or tell it wrong
Superguy.
knock knockwho's thereI'm lionthan tell me who you really are then.
knock knock whos there Dork Dork who Dorky Whale
This is part of a joke. The answer to this joke can not be answered because some people have different answers to it.
Knock Knock Who's there James Come in!
knock knock jokes are probally the best
Knock, knock Who's there? Alpha Alpha who? Alpha Q.