Try to guess it

Question

In the basement there are 3 light switches in the "off position." Each switch controls one of three light bulbs on the floor above. You may turn on any of the switches, but you may only go up stairs one time to see which light(s) were affected. How can you determine which switch controls each particular light bulb?

Answer 1

Turn the first switch on and wait 5 minutes. Then turn the second switch on and wait 5 minutes. Then turn the third switch on and wait five minutes. You go upstairs to the other room, the bulb that is warm is operated by the first switch, the roasting hot bulb (that would burn your hand) is operated by the second switch, and the cold bulb is operated by the third switch.

My friend asked me this on a camping trip, and I would have never guessed the answer!

Great question!!

Comments

Thank you! You did great