| Joke | Punchline | Superfluous Comment |
| Knock, knock. Who's there? Atch. Atch who? | |
| Knock, knock. Who's there? The interrupting cow. The interrup-- | |
| Knock, knock. Who's there? Ya. Ya who? | |
| Knock, knock. Who's there? Apple. Knock, knock. Who's there? Apple. Knock, knock. Who's there? Orange. Orange who? | |
| Knock, knock. Who's there? Boo. Boo who? | |
| Knock, knock. Who's there? Smell mash. Smell mash who? | |
| Knock, knock. Who's there? Tohf. Tohf who? | |
| Knock, knock. Who's there? Who. Who who? | |
| | Joke | Punchline | Superfluous Comment |
| Knock, knock. Who's there? Smell map. Smell map who? | |
| Knock, knock. Who's there? Cash. Cash who? | |
| Knock, knock. Who's there? Repeat. Repeat who? | |
| Knock, knock. Who's there? Aisle of. Aisle of who? | |
| Knock, knock. Who's there? Goog. Goog who? | |
| Knock, knock. Who's there? Tat. Tat who? | |
| Knock, knock. Who's there? Tank. Tank who? | |
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