The Robots

Riddle: You are stuck in a room with 2 robots who cannot move - one tells the truth, one lies. You cannot tell them apart. They are identical. There are 2 doors. If you go through one of them, you will explode. If you go through the other, you will survive. Your mission is to find out which robot lies and which one tells the truth. You can only ask one question. What is it?

Answer: If I go through that door, what will happen?

Source: https://www.riddles.com/index.php/2366

You are stuck in a room with 2 robots who cannot move - one tells the truth, one lies. You cannot tell them apart. They are identical. There are 2 doors. If you go through one of them, you will explode. If you go through the other, you will survive. Your mission is to find out which robot lies and which one tells the truth. You can only ask one question. What is it? — The Robots by Mamie Yang v1.

Riddle: You are stuck in a room with 2 robots who cannot move - one tells the truth, one lies. You cannot tell them apart. They are identical. There are 2 doors. If you go through one of them, you will explode. If you go through the other, you will survive. Your mission is to find out which robot lies and which one tells the truth. You can only ask one question. What is it? Answer: If I go through that door, what will happen? — by Mamie Yang v2.