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