Go upstairs and touch the bulb.
Basement attic light switch riddle.
There is no one there to help you.
You are in the basement of a house where there are are three identical on off switches.
You have no way to see into the attic or to see reflected light from the attic.
The famous light bulb riddle.
Outside of the closet there are three light switches.
Switch 1 leave on 5 minutes then shut off.
All of them are turned off and their switches are installed downstairs.
You can turn the switches on and off as many times as you wish they are all off to begin with but may only enter the room once.
The door to the room is closed and there are no windows.
You need to determine which switch operates the bulb.
However you know the light is off to start.
Switch 3 on 5 minutes then off.
That is switch on 1 2 wait a minute switch off two and go to the attic and check if the bulb is on hot or cold.
Switch 2 on 5 minutes then shut off.
Turn on one switch for five minutes then turn it off.
The light on is the second and the light off is the switch you didn t flip.
Flip a second switch and run up to the attic.
Inside is a single light bulb controlled by one of the three switches.
There are three switches in the basement two of which are useless one is connected to a lightbulb in the attic.
It s basically the same solution as our first idea.
I was thinking about the light switches.
If you have 3 switches downstairs have a time delay of 5 minutes between each switch.
The door is closed and you cannot see if the light is on or off through the door.
If the bulb is cold.
Test your brain logic by trying to solve this real life situation riddle.
There are three light switches outside a room.
How can you find out which switch to which bulb corresponds.
There are three light bulbs in your attic.
You are in a basement with three light.
You can play with the switches as much as you want and after that you can visit the attic above just once.
If you go upstairs to the attic you are not allowed to return to basement.
How can you figure out which light switch goes to which light bulb by only making 1 trip upstairs.
There are 3 switches downstairs each corresponding to one of the light bulbs upstairs.
You must determine which needs saving and remove the other two.
