Knock, knock. Who's there? Lettuce. Lettuce who? Lettuce get together soon, I miss you!

Knock, knock. Who's there? Theresa. Theresa who? Theresa fly in my soup!

Knock, knock. Who's there? Noah. Noah who? Noah good knock-knock jokes?

Knock, knock. Who's there? Dawn. Dawn who? Dawn is breaking, open the door!

Knock, knock. Who's there? Iva. Iva who? I've a sore hand from knocking!

Knock, knock. Who's there? Boo. Boo who? It's just a knock-knock joke, don't be scared!

Knock, knock. Who's there? Doris. Doris who? Doris locked, can you open the door?

Knock, knock. Who's there? Boo. Boo who? Boo hoo, it's just a joke!

Knock, knock. Who's there? Europe. Europe who? Are you a poo-tician?

Knock, knock. Who's there? Police. Police who? Police stop asking so many questions!

Knock, knock. Who's there? Orange. Orange who? Orange you glad to see me?

Knock, knock. Who's there? Owl. Owl who? Yes, I will have a hotdog with mustard.

Knock, knock. Who's there? Nun. Nun who? Nun of your business!

Voodoo you think you are?

Wendy be here all night!

Nobel prize for the best joke!

Turnip the volume, I love this song!

Canoe give me a hand with this?

Anyone hungry for a snack?

Mustard been the wind, sorry!

Thermos nobody here let me in!