[PatG473]

Reading that story reminded me of a similar question I was given as an extra credit question during an exam. This is an accurate reproduction I found of it as well as the "answer."

PHILOSOPHY EXAM

An eccentric philosophy professor gave a one question
final exam after a semester
dealing with a broad array of topics.
The class was already seated and ready to go
when the professor picked up his chair,
plopped it on his desk and wrote on the board,
and said, "Using everything we have learned this semester,
prove that this chair does not exist ."

Fingers flew,
erasers erased,
notebooks were filled in furious fashion.
Some students wrote over 20 pages in one hour,
attempting to refute the existence of the chair.
One member of the class however,
was up and finished in less than a minute.

Weeks later,
when the grades were posted,
the rest of the group wondered
how he could have gotten an "A"
when he had barely written anything at all.
Word soon spread when it was learned
what his answer had been.

His answer had consisted of only two words: --

"What chair?"