Today, the web is laughing at a set of extra credit questions attributed to an unknown statistics professor.* This one at the top is my favorite. Almost certainly some anxious student is going to jump on his desk and yell "Oh Captain! My Captain!" -- a reference to the Robin Williams film Dead Poets Society.
*I tried to track down the original source, but was unsuccessful. Do I get extra credit for trying? How about partial credit?
-via Lost at E Minor