Switch 3 on 5 minutes then off.
Basement attic light switch riddle.
You are in the basement of a house where there are are three identical on off switches.
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.
If you go upstairs to the attic you are not allowed to return to basement.
Go upstairs and touch the bulb.
One of them controls a lamp in the attic and two of them do nothing.
The door to the room is closed and there are no windows.
There are 3 switches downstairs each corresponding to one of the light bulbs upstairs.
Inside is a single light bulb controlled by one of the three switches.
Test your brain logic by trying to solve this real life situation riddle.
I was thinking about the light 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.
Switch 2 on 5 minutes then shut off.
The door is closed and you cannot see if the light is on or off through the door.
You can play with the switches as much as you want and after that you can visit the attic above just once.
You have no way to see into the attic or to see reflected light from the attic.
You need to determine which switch operates the bulb.
If the bulb is cold.
There are three light switches outside a room.
Switch 1 leave on 5 minutes then shut off.
How can you figure out which light switch goes to which light bulb by only making 1 trip upstairs.
Then switch 1 would be the switch.
There is no one there to help you.
How can you find out which switch to which bulb corresponds.
There are three switches in the basement two of which are useless one is connected to a lightbulb in the attic.
All of them are turned off and their switches are installed downstairs.
There are three light bulbs in your attic.
Flip a second switch and run up to the attic.
You must determine which needs saving and remove the other two.
The light on is the second and the light off is the switch you didn t flip.
However you know the light is off to start.
You are in a basement with three light.
It s basically the same solution as our first idea.
Outside of the closet there are three light switches.
The famous light bulb riddle.
