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

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

Asked by Neha on 05 Sep 2025


I have branches, but no fruit, trunk or leaves. What am I?

Asked by Neha on 18 May 2022

It's pretty hard to give up.
If you remove a part of it, you will be left with a bit.
Even if you remove another part, the bit still remains.
Remove one more and it still remains.

What is it?

Asked by Neha on 06 May 2025


There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

Asked by Neha on 17 Mar 2022

Which Travels Faster? Solve below famous picture riddle:

Which Travels Faster

Asked by Neha on 11 Dec 2024

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

Asked by Neha on 27 Feb 2024


What question can you never answer yes to?

Asked by Neha on 09 May 2022

Solve the mathematical equation in the picture below.

Math Equation Picture

Asked by Neha on 16 May 2023

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Asked by Neha on 27 Nov 2025


When can we add 2 to 11 and get 1 as the correct answer?

Asked by Neha on 16 Oct 2023

Hot Articles

Amazing Facts

Crossword

The day before the 1996 U.S. presidential election, the NYT Crossword contained the clue “Lead story in tomorrow’s newspaper,” the puzzle was built so that both electoral outcomes were correct answers, requiring 7 other clues to have dual responses.