Knock, knock. Who's there? Police. Police who? Maybe you should pull over!

Knock, knock. Who's there? Unicycle. Unicycle who? Unicycle for you and one for me!

Knock, knock. Who's there? Jester. Jester who? Jesterday was a funnier joke!

Knock, knock. Who's there? Accordion. Accordion who? Accordion to the weather report, it's going to rain!

Knock, knock. Who's there? Olive. Olive who? Olive you so much, I had to tell another joke!

Knock, knock. Who's there? Art. Art who? R2-D2, that's who!

Knock, knock. Who's there? Mary. Mary who? Mary me and we'll tell knock-knock jokes forever!

Knock, knock. Who's there? Ice cream soda. Ice cream soda who? Ice cream soda million dollars!

Knock, knock. Who's there? Jedi. Jedi who? Jedi mind tricks won't work on me, open the door!

Knock, knock. Who's there? Frank. Frank who? Frank you for letting me tell jokes at your doorstep!

Knock, knock. Who's there? Amish. Amish who? You don't look a thing like a shoe!

Knock, knock. Who's there? Dewey. Dewey who? Dewey have to repeat these knock-knock jokes?

Knock, knock. Who's there? Doughnut. Doughnut who? Doughnut forget about me!

Knock, knock. Who's there? Lionel. Lionel who? Lionel take forever to come to the door!

Knock, knock. Who's there? Llama. Llama who? Llama tell you a secret, but you have to promise not to spit!

Knock, knock. Who's there? Bunny. Bunny who? Bunny see a doctor, you look a little sick!

Knock, knock. Who's there? Radar. Radar who? Radar few good books lately?

Knock, knock. Who's there? Justin. Justin who? Justin the neighborhood, can I borrow a cup of sugar?

Knock, knock. Who's there? Olive. Olive who? Olive your presents are belong to me!

Knock, knock. Who's there? Cargo. Cargo who? Cargo beep beep, here comes the delivery truck!

Knock, knock. Who's there? Boo. Boo who? Aw, don't be sad, it's just a joke!