We all know this situation. You are in a small room with walls made out of stone. But then it gets different: there are five doors. In front of each door is a guardian.
The first guardian is an elf with a golden spear. The second guardian is an elf with a silver spear. You know that one of them always tells the truth and the other lies, but you do not know which is which. Additionally, they are bitter enemies. They are currently invisible to each other, but if you remind either one of the other's presence, they will attack each other. You do not know which is stronger.
The third and fourth guardians are both orcs with big axes. One of them will kill you if you ask them a question to which the correct answer is no, and the other will kill you if you ask them a question to which the correct answer is yes.
The fifth guardian is shrouded in mist, his two eyes glowing purple through the fog. He will answer any question perfectly and truthfully, but he can only answer one question before he dissolves into the air. However, he cannot tell you which elf tells the truth and which lies.
One of the doors leads to eternal happiness, one to the normal world, and three of them to horrible pain. You cannot tell which, but all five guardians know which doors lead to which fate. Only the elves know which is a liar and which is a truth-teller.
You have 3 lives. What do you do? Please answer in the comments below.