QUESTION:
What is the degree of (x-a)(x-b)(x-c)... (x-z)?

COMMON ANSWER: 26.

TRICK ANSWER: 0. Note that the third to last factor is 0.

I call this a trick question, not a stupid question.
Most people I show it to are tricked but then enlightented
and amused when they see the real answer.

A type theorist I showed this to got really mad and told me the 
degree is 26 because of issues of types-of-variables.
That is the `x' in (x-a) is diff then the second x in (x-x).
He would call it a stupid question.
I would call him a sore loser.