Challenging Puzzle

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?




Similar Riddles

Find the next number in the series below

21 32 54 87 131 ?

Asked by Neha on 16 Nov 2023


What begins with T, ends with T, and has T in it?

Asked by Neha on 15 Oct 2021

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Asked by Neha on 11 Jan 2021


our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.

Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?

Asked by Neha on 04 May 2022

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

Asked by Neha on 14 May 2021

There are 3 apples in the basket and you take away 2. How many apples do you have now?

Asked by Neha on 21 Oct 2025


Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

Asked by Neha on 22 Jan 2021

Count the number of triangles in the below picture?

Triangles Count

Asked by Neha on 12 Oct 2023

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Asked by Neha on 21 Sep 2021


I am working in a bus company. The company recently went under expansion and therefore there was not enough room for all the buses. As a result, twelve buses had to be stored outside.

If the company decides to expand the garage space by forty percent, enough space to accommodate the current buses will be created leaving enough space for twelve more buses if the need arises in future.

Can you calculate the number of buses that the company owns at present?

Asked by Neha on 18 Dec 2020

Hot Articles

Amazing Facts

Word ladder puzzle

The word ladder puzzle was invented by Lewis Carroll, author of Alice’s Adventures in Wonderland.