Riddle Me This: The Three Light Switches
There are three switches in a basement. Each corresponds to one of the three light bulbs upstairs in the attic. You can turn the switches on and off and leave them in any position.
How would you identify which switch controls which light bulb, if you are only allowed to go upstairs once?
Go to the next page for the answer!
(Hint: think about the heat that light produces.)
via Brain Den
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Switch on a bulb. Switch it off. Switch on another. Then go upstairs. One will be on. Among the other two, one will be hot and the other will be on room temp
Is this your house.