Subtitles section Play video Print subtitles >> NARRATOR: You stand before two magical gateways. One leads to paradise but the other leads to DEATH. Oh, don't worry! I'm talking about YOUR death, not mine! Each portal has a guard. One of these guards always tells the truth, but the other one always lies. Unfortunately, you can't tell which one is the liar. Think of a single question that you could ask only one guard that positively determines which gateway leads to paradise. I'll give you some time to let that hamster wheel inside your head ... work its magic. I don't want you dying on me. Ah, very good. You ask one of the guards "which portal would the OTHER guard say is the gateway to paradise?" If you ask the honest guard this question, he knows that the other one is a liar, so he will give you the wrong answer because that's what the other guard would say. If you ask the liar, he knows that the other guard would give you the right answer. But since he lies, he will change it to the wrong answer. In both cases, the correct portal is the opposite of the guard's answer. Knowing this, you make your selection, the guard vanishes, and you hope that death and paradise aren't the same thing. Just kidding! Well, you solved the riddle.Now it's time to go through the portal. On the count of three! One ... two ... three. So what's waiting for you on the other side? Well, you notice something truly amazing that looks just like ...
B1 guard portal paradise liar wrong answer gateway The Two Guards, Two Doors Riddle 81 4 VoiceTube posted on 2016/07/07 More Share Save Report Video vocabulary