Then switch 1 would be the switch.
Basement attic light switch riddle.
The famous light bulb riddle.
The door to the room is closed and there are no windows.
All of them are turned off and their switches are installed downstairs.
You must determine which needs saving and remove the other two.
There are three switches in the basement two of which are useless one is connected to a lightbulb in the attic.
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 1 leave on 5 minutes then shut off.
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.
Test your brain logic by trying to solve this real life situation riddle.
Go upstairs and touch the bulb.
Inside is a single light bulb controlled by one of the three switches.
As long as you don t stop for a beer before running up the light that s off but warm to the touch is the first switch.
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.
Flip a second switch and run up to the attic.
You are in a basement with three light.
There are 3 switches downstairs each corresponding to one of the light bulbs upstairs.
Switch 3 on 5 minutes then off.
There are three light switches outside a room.
Outside of the closet there are three light switches.
You can play with the switches as much as you want and after that you can visit the attic above just once.
There are three light bulbs in your attic.
Switch 2 on 5 minutes then shut off.
If you go upstairs to the attic you are not allowed to return to basement.
Turn on one switch for five minutes then turn it off.
How can you figure out which light switch goes to which light bulb by only making 1 trip upstairs.
There is no one there to help you.
However you know the light is off to start.
How can you find out which switch to which bulb corresponds.
If the bulb is cold.
If you have 3 switches downstairs have a time delay of 5 minutes between each switch.
I was thinking about the light switches.
The light on is the second and the light off is the switch you didn t flip.
It s basically the same solution as our first idea.
