Brain teasaer. 3 light switches.?!
Question:
Brain teasaer. 3 light switches.?
oky, u are outside of a room. the door is closed. there is absolutely no way to see into the room, except for opening the door. inside the room, there is a lamp on a table. outside the room, there are 3 light switches, but only one of the 3 switches, switches on the light. you can play with the switches as much as u like, but once u opened the door, you may not touch the switches again. you may only open the door and enter the room ONCE! how could u be sure which switch is the correct one? first correct answer will get best answer.
Answers:
You put the first switch on for 10 minutes.
Then you put it off, and turn the switch 2.
You enter the room. If the light is on, it's number 2.
If the lightbulb is hot, it's the switch number 1.
Else, it's number 3.