Top Puzzle 3: The Three Light Bulb Switches | Puzzles for Interview - Interview Preparation PDF Download

Introduction

Are you ready to solve a brain teaser riddle? Here is a tricky question that requires thinking outside the box. Read on to find out how to solve the 3 switches for 1 bulb brain teaser riddle.

Riddle

Imagine there is a lightbulb inside a closet, and the door is closed, so you cannot see whether the light is on or off. However, you know that the light is off to start. Outside of the closet, there are three light switches, but only one of them controls the lightbulb in the closet. You can flip the switches however you want, but once you open the door, you cannot touch the switches anymore. How do you figure out which of the three light switches controls the light without a doubt?

Solution

The answer to this brain teaser riddle is to use a clever method. First, flip switch number 1 and wait a few minutes. Then, flip switch number 1 back to its original position, and immediately flip switch number 2. Finally, open the door. If the light is on, then switch number 2 controls it. If the light is off, then you need to use your hand to feel the bulb. If the bulb is hot, then switch number 1 controls it. If the bulb is cold, then switch number 3, the one you did not touch, controls it.

Conclusion

The 3 switches for 1 bulb brain teaser riddle is a great way to test your problem-solving skills. By using a clever method, you can solve the riddle and impress your friends with your intelligence. Remember, thinking outside the box is the key to solving this type of puzzle.