I'm sure someone already has knowledge of this problem, so forgive me is it has been posted:
A judge is undecided if he finds a defendant guilty or not, so he divises a plan to get out of the dillema, he proposes a logic problem to the defendant, and if he gets it right he will set him free, so he starts:
"On this courtroom there are two exit doors: one leads to freedom, the other to jail, and in front of each of those doors there is a guard, one always tells the truth, the other always lies. You can make one and only one question to one of the guards, so what is the question you need to make so you are sure of what door is wich?"
So what is the question?
A judge is undecided if he finds a defendant guilty or not, so he divises a plan to get out of the dillema, he proposes a logic problem to the defendant, and if he gets it right he will set him free, so he starts:
"On this courtroom there are two exit doors: one leads to freedom, the other to jail, and in front of each of those doors there is a guard, one always tells the truth, the other always lies. You can make one and only one question to one of the guards, so what is the question you need to make so you are sure of what door is wich?"
So what is the question?