Lateral Thinking Riddles

Lateral thinking puzzles involve solving problems through an indirect and creative approach, using reasoning that is not immediately obvious, thinking out of the box and involving ideas that may not be obtainable by using only traditional step-by-step logic.

3 Light Switches for 1 Light Bulb

You have a set of 3 light switches outside a closed door. One of them controls the incandescent light bulb inside the room. With the door closed from outside the room, you can turn the light switches on or off as many times as you would like.

You can go into the room – one time only – to see the light. You cannot see the whether the light is on or off from outside the room, nor can you change the light switches while inside the room.

No one else is in the room to help you. The room has no windows.

Based on the information above, how would you determine which of the three light switches controls the light inside the room?

Riddle Answer

Hotel Room

A woman was in her hotel room when suddenly there’s a knock on the door.

She opened the door to see a man whom she had never seen before. He said, “I’m sorry, I have made a mistake, I thought this was my room.” He then went down the corridor and in the elevator. The woman went back into her room and phoned security.

Why was the woman so suspicious?

Riddle Answer