Interviewer: are you smart? Bob: I'm not smart, but I am clever. Interviewer: How so? Bob: in class, I sat next to the dumbest and second dumbest person in class, I'm the third dumbest, but by peeking at their tests, I got the highest score in the class.

Interviewer: how's that possible? Bob: by process of elimination. None of our answers could be correct.