Mustache who? -
Knock-knock.
Who's there?
Mustache.
Mustache who?
I mustache you a question, but I'll shave it for later.
Luke who? -
Knock-knock.
Who's there?
Luke.
Luke who?
Luke through the peephole and find out.
No one who? -
Knock-knock.
Who's there?
No one.
No one who?
(Remains silent)
Boo who? -
Knock-knock.
Who's there?
Boo.
Boo who?
Don't cry, it's just a joke!
Lettuce who? -
Knock-knock.
Who's there?
Lettuce!
Lettuce who?
Lettuce in.
I am who? -
Knock-knock.
Who's there?
I am.
I am who?
You don't know who you are?
Kenya who? -
Knock-knock.
Who's there?
Kenya.
Kenya who?
Kenya open the door?
Says who? -
Knock-knock.
Who's there?
Says.
Says who?
Says me, that's who!
Tennis who? -
Knock-knock.
Who's there?
Tennis.
Tennis who?
Tennis five plus five.
Harry who? -
Knock-knock.
Who's there?
Harry.
Harry who?
Harry up, it's cold outside!