Knock, knock. Who's there? Norma Lee. Norma Lee who? Norma Lee not telling any more jokes!

Knock, knock. Who's there? Hercules. Hercules who? Hercules your joke?

Knock, knock. Who's there? Tank. Tank who? Tank you for the knock-knock joke!

Knock, knock. Who's there? Julien. Julien who? Julien time for another joke!

Knock, knock. Who's there? Noah. Noah who? Noah your neighbor is moving out!

Knock, knock. Who's there? Canoe. Canoe who? Canoe hear me knocking?

Knock, knock. Who's there? Norma Lee. Norma Lee who? Norma Lee, I'm not telling you!

Knock, knock. Who's there? Hercules. Hercules who? Hercules the man of the hour!

Knock, knock. Who's there? Idaho. Idaho who? Idaho not want to miss this joke!

Knock, knock. Who's there? Venetian. Venetian who? Venetian blinds have you been in lately?

Knock, knock. Who's there? Luke. Luke who? Luke through the keyhole and find out!

Knock, knock. Who's there? Julius. Julius who? Julius Caesar!

Knock, knock. Who's there? Voyage. Voyage who? Voyage-ur welcome!

Knock, knock. Who's there? Harry. Harry who? Harry the key, I'm locked out!

Knock, knock. Who's there? Billy. Billy who? I didn't Billy-ve you'd answer!

Knock, knock. Who's there? Orange. Orange who? Orange you going to open the door?

Knock, knock. Who's there? Police. Police who? Police hurry up and let me in!

Knock, knock. Who's there? Lettuce. Lettuce who? Lettuce turnip the volume!

Knock, knock. Who's there? Leaf. Leaf who? Leaf me alone!

Knock, knock. Who's there? Candy. Candy who? Candy get any better than this?

Knock, knock. Who's there? Boo. Boo who? Oh, stop crying, it's just me!