Seriously, it is not a joke. I really want to know.
A: Anything he wants to be called.
Depends what you want it to change into...
If you answered "I don't know." I would like to tell you that I spent all day cleaning that mess up.
God knows it will be lost. - Then why should we go for it - To find out who is the loser.
He just couldn't grasp it.
I think it's because usually the punchline is too long
He works it out with a pencil.
A: A nasty smell that you can't get rid of.