I used John Kulig's wonderful "hat" brain teaser in class to demonstrate
different approaches to assessing intelligence. It was such a hit that
I'm hoping to have occasional teasers to spice up class. Anybody have
any others?
Here's one I have to offer (hope I can describe it as well as I heard it):
(Answer tomorrow!!)
You have three electrical switches on the first floor of your house. One
of them turns on a light in a closet on the third floor of your house. You
want to figure out which switch turns on the light, making only one trip
upstairs. (You can't see the light outside at night.)
How can you tell which switch turns on the light?
Beth Benoit
University of Massachusetts Lowell
