[contributed by David Ljung Madison]

Question: Can you think of a system where the following selection of numbers are properly sorted?

10, 20, 50, 100, 110, 80, 130, 99, 150

Answer: A microwave.

On a microwave, 100 is one minute, not 100 seconds, which is actually less than 80. Try it out on a microwave and see which one takes longer.