another one - courtesy of Tak!
BRAINTEASER 2
1. You got two rooms connected by nothing but a door - let's call them R1 and R2.
2. When you are in one room you have NO idea what's happening in the other room.
3. In R1, you got 3 light switches.
4. In R2, you got 3 light bulbs.
5. Each light switch is linked to one of the three light bulbs.
You are given a single opportunity to walk from R1 into R2, and only from R1 into R2 directionally, and from that figure out which light switch controls which light bulb.
HOW?
1. You got two rooms connected by nothing but a door - let's call them R1 and R2.
2. When you are in one room you have NO idea what's happening in the other room.
3. In R1, you got 3 light switches.
4. In R2, you got 3 light bulbs.
5. Each light switch is linked to one of the three light bulbs.
You are given a single opportunity to walk from R1 into R2, and only from R1 into R2 directionally, and from that figure out which light switch controls which light bulb.
HOW?