They always take things literally.
It is a play on words, after all
A *cow*culater. I made it up myself, so don't groan at the pun.
The dishes if she knows whats good for her.
Because the teacher keeps asking about things that happened before I was born!
The one who you have to explain the joke to.
Just two. One to explain to the public that everything possible is being done to solve the problem, and the other to screw the lightbulb into the water faucet.