Narrator: Brain, this is Question Mark. Question Mark this is Brain.

Brain: Brain!

Question Mark: Why is there a brain on a trampoline?

Narrator: A question mark goes on the end of every question.

Question Mark: Why are you explaining what I do?

Narrator: Oh look, there's another one!

Question Mark: Who keeps talking?

Narrator: And another, wow you're on a roll!

Question Mark: Are you going to do that after everything I say?

Narrator: Look at you go!

Question Mark: Are they always like this?

Brain: Brain!