Puzzle - Switches Last Updated : 19 Apr, 2023 Comments Improve Suggest changes Like Article Like Report There are three switches outside a room, all in the "off" position. One of the switches controls a light bulb inside the room, but you don't know which one. You are allowed to enter the room only once, and you cannot turn the switches on or off while you are in the room. How can you determine which switch controls the light bulb? Puzzle - SwitchesSolution: Turn on the first switch and leave it on for a few minutes. then, turn off the first switch and turn on the second switch. Enter the room and there will be three possible scenarios: If the light bulb is on, it is controlled by the second switch.If the light bulb is off but warm to the touch, it is controlled by the first switch.If the light bulb is off and cool to the touch, it is controlled by the third switch. Comment More infoAdvertise with us Next Article Puzzle - Switches M maulyashetty710 Follow Improve Article Tags : Aptitude Logical Puzzles Similar Reads Puzzle 7 | (3 Bulbs and 3 Switches) There is a room with a door (closed) and three light bulbs inside the room. Outside the room, there are three switches, connected to the bulbs. You may manipulate the switches as you wish, but once you open the door you can’t change them. All bulbs are in working condition and you can open the door 1 min read Puzzle | Light all the bulbs Problem Statement: Consider a circle with 2014 light bulbs and only 2 of them are on and the rest are off. Anyone can choose any of the bulbs and change the state of the neighboring bulbs. The task is to switch all the 2014 light bulbs on?Solution: Yes, it is possible to get all the light bulbs ON.F 2 min read Puzzle | The Circle of Lights There is a circle of N > 2 lights with a switch next to each of them. Each switch can be flipped between two positions, thereby toggling the on/off states of three lights: its own and the two lights adjacent to it. Initially, all the lights are off. Design an algorithm for turning all the lights 2 min read Puzzle | Haunted House Escape Two friends Ram and Shyam were travelling through a forest. They were hungry and it was late at night. They were looking for shelter and after a long journey they found a haunted house. They decided to stay there and leave in the morning. There was no light and electricity and also it was raining he 2 min read Monty Hall problem The Monty Hall problem is a surprising probability puzzle:There are 3 doors—two hide goats, and one hides a car.You pick one door (let’s call it door 2), hoping it has the car.The game show host, Monty Hall, then looks at the other two doors (1 and 3) and opens one that has a goat behind it (Say 3). 2 min read Like