Here's another one.

You are driving a bus. At the first stop, 17 people get on the bus. At the second stop, 6 people get on and 11 people get off. At the third stop, 14 people get on and 5 people get off. At the fourth stop, 4 people get on and 9 people get off. What color are the bus driver's eyes?

Looking back at the first line, the bus driver is you. So the bus driver's eyes are the color of your eyes. An alternative is to ask what the bus driver's name is. This is a fun one, but it only works verbally. The order of the stops, the names, and the numbers of people are obviously unimportant.

As a sidenote, Stupid Human Tricks is also a segment of The Late Show, Dave Letterman's late-night television show. People come up on stage to show off their stupid human tricks. They demonstrate tricks such as bugging their eyes out of their heads, crushing soda cans on their foreheads, and, my personal favorite, juggling while recited the alphabet backwards in French. See also: Stupid Pet Tricks.