Q: What is a parabola?
A: A very horrible disease that monkeys carry.
Q: What is a liter?
A: A nest of puppies.
Q: Define a triangle.
A: A circle with three sides.
Q: When did the founding fathers draft the constitution?
A: It was a second round pick, right after LeBron James.
Note: Thanks to M.T. (WWU) for sharing this book of unfortunate humor.
Source: R. Benson's F for Effort. 2012.