Knock, knock. Who's there? Harold. Harold who? Harold you answer the door?

Knock, knock. Who's there? Yoda lady. Yoda lady who? Yoda lady-hoo!

Knock, knock. Who's there? Tank. Tank who? You're welcome inside!

Knock, knock. Who's there? Leaf. Leaf who? Leaf all your worries behind!

Knock, knock. Who's there? Stopwatch. Stopwatch who? Stopwatch your doing and let me in!

Knock, knock. Who's there? Fig. Fig who? Fig out this riddle!

Knock, knock. Who's there? Ida. Ida who? Ida know, but I'm glad you opened the door!

Knock, knock. Who's there? Mary. Mary who? Mary Christmas, open the door!

Knock, knock. Who's there? Elsa. Elsa who? Elsa me, it's cold out here!

Knock, knock. Who's there? Voodoo. Voodoo who? Voodoo you think you are, not letting me in?

Knock, knock. Who's there? Cow goes. Cow goes who? No, silly, cow goes moo!

Knock, knock. Who's there? Honeydew. Honeydew who? Honeydew you think you're talking to?

Knock, knock. Who's there? Butter. Butter who? Butter let me in or I'll knock again!

Knock, knock. Who's there? Dewey. Dewey who? Dewey have to use a key to unlock this door?

Knock, knock. Who's there? Thistle. Thistle who? Thistle have to do until I find my keys!

Knock, knock. Who's there? Butter. Butter who? Butter open quickly, it's cold!

Knock, knock. Who's there? Canoe. Canoe who? Canoe help me with my math homework?

Knock, knock. Who's there? Beet. Beet who? Beet me to the door!

Knock, knock. Who's there? Dunnup. Dunnup who? Dunnup forget to lock the door on your way out!

Knock, knock. Who's there? Rug. Rug who? Rug up, it's cold outside!

Knock, knock. Who's there? Booze. Booze who? Booze the door!