Switch Room!
There are 3 switches in one room that control 3 electrical lamps located in the other room.You are allowed to spend 5 minutes in the room with switches,change their position as you want.Then you should go to the room with lamps and tell exactly what switch controls every lamp.You can't return to the room with switches.
2 comments:
Turn the first switch on. Leave it on for the full five minutes, then turn it off. Turn on the second switch just before leaving the switches. When in the other room, the first switch controls the lightbulb that is on and hot, the second controls the one that is on, and the third controls the lightbulb that is off and cool.
i also knew this answer.....but its been already answered....
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