Riddle
Imagine you are in a room with 3 switches. In an adjacent room there are 3 bulbs (let's say in lamps which are on a regular table), each switch belongs to one bulb. All are off at the moment. It is impossible to see from one room to another. No help from anybody else is allowed. How can you find out which switch belongs to which bulb, if you may enter the room with the bulbs only once?
Try it first, then reveal and read the payoff.
Explore more on the Adult Riddles hub (with answers).
Answer
Take a moment to solve it, then reveal the answer below.
Why it works
The answer makes sense once you stop reading the setup in the most literal everyday way.
More like this
- A man ordered a length of rope by telephone from his nearest hardware shop. But when he went to collect the rope, he found that the assistant had miswritten th…
- A man condemned to death has the option of picking one of the mentioned three rooms. The first room is a furnace filled with flames. The second has armed men w…
- A murderer is condemned to death. He has to choose between three rooms. The first is full of raging fires, the second is full of assassins with loaded guns, an…
Challenging brain teasers and logic puzzles designed to test your critical thinking. Find hard riddles with answers, mind-bending logic puzzles, and riddles for adults.
Adult Riddles on the blogRelated riddles
- How can you throw a ball as hard as you can, to only have it come back to you, even if it doesn’t bounce off anything?
- You hear it speak, for it has a hard tongue. But it cannot breathe, for it has not a lung. What is it?
- It speaks with a hard tongue, it cannot breathe, for it has no lung. What is it?
More on the blog or the daily riddle.