Does this smell like chloroform to you
Because they always work problems out with a pencil.
Disclaimer: I don't know how well this joke will work in English. What's yellow and lies in a pond? An excevator. You don't think this is funny? Neither does the operator.
A Pair-a-ducks.
A racket.
They picked random letters from a hat. C, eh N, eh D, eh
Women.
Kermit the frogs fingers
Tacos. Overheard an old man telling another guy how he lost his farm in Mexico, and how the smell reminded him of tacos.
A wind tunnel!
Chloroform.