I love this one. It took me a bit, but I eventually figured it out. Remember, no cheating.
Imagine you are in a room with 3 switches. In an adjacent room there are 3 bulbs (all are off at the moment), each switch belongs to one bulb. It is impossible to see from one room to another. How can you find out which switch belongs to which bulb, if you may enter the room with the bulbs only once?
BTW, no one has gotten the last riddle yet, but I will post the solution soon.
Kris is still home with the flu, I'm getting better on the zPack and I want to go see the new Will Ferrell movie this weekend.
2 comments:
Dad again - turn 2 switches on. Wait a few minutes and turn one of the two switches off. Go into the room and feel the two bulbs that are off. The warm one will be the switch you turned off, the switch that's on will be lit and the cold bulb will be the switch you never touched. Mensa . . .
Didn't know that one, and probably wouldn't have figured it out. A smart answer, but that seems an awful lot like cheating, especially since the old hot bulbs are being phased out. C'mon, Mensa is supposed to be on the cutting edge.
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