This is just a pretty old puzzler, so refrain from spoiling it if you already know it please..
There are 2 rooms that are completely isolated from each other. In 1 room, there are 3 light switches. In the other, 3 light bulbs.
How can you determine which light switch is connected to each light bulb if you can only be in each room ONCE?
There are 2 rooms that are completely isolated from each other. In 1 room, there are 3 light switches. In the other, 3 light bulbs.
How can you determine which light switch is connected to each light bulb if you can only be in each room ONCE?