Trivia Question


You are standing next to three light switches. You know these switches belong to three bulbs in a room behind a closed door, and it’s absolutely impossible to see if any bulb is on or not. All three switches are now in the “off” position. 

You can do whatever you want with the switches, and when you are finished you must open the door and go into the room to determine which switch belongs to which bulb.


Click here to reveal the answer.
Answer: Turn on the first switch and wait for a while. Turn off the first one and turn on the second. Go into the room. One bulb is shining, the second bulb is hot and the third one is unlit and cool to the touch.

How did you do? Check out even more fun trivia questions.

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