Knock Knock. Who's there? Anita. Anita who? Anita really warm place to sleep tonight, it's cold out here.

Knock knock Who's there? Mayonaise Mayonaise who? Mayonaise a lot of jokes on this website.

Knock Knock! Who's there? Who who. Who who who? Is there an owl in here?

One day, someone phoned Central Manhattan Office. Caller: Good afternoon. I'm John Smith. Operator: GOOD AFTERNOON! CAN I HELP YOU? Caller: Who are you? Why are you so rude? Operator: WHO ARE YOU LOOKING FOR? Caller: I am looking for my sister, Gabrielle Smith. She works here, right? Operator: SHE IS IN THE TOILET! Caller: Okay. Now I want to know who you are. Why are you so rude? Operator: I'M SAW LEE! Caller: Oh, you should be sorry because you are so rude! Then the caller hung up the phone. *Try to pronounce "SAW LEE". It sounds like "SORRY", right?

Knock Knock Who's there? Bach! Bach who? Bach to work!

Knock, knock Who's there? Did you ever hear the joke about the broken pencil? Did you ever hear the joke about the broken pencil who? Nevermind, it's pointless.

Knock, knock Who's there? Some. Some who? Some asshole telling you knock, knock jokes.

Knock, Knock Who's there? Ya Ya - who? I didn't know you could yodel! Yahoooo!

Knock-Knock Who's there? Orange Orange who Orange you tired of hearing the same stupid jokes about oranges?

Knock Knock! Who's there? Yo da lay he. Yo da lay he who? I didn't know you could yodel!