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Originally posted by: Darth Simon
ask either guard, doesnt matter which one, what the other guard would say is the door that leads to freedom.
if you happen to ask the guard that always lies he will tell you the door that leads to death (because he is lying about it being what the other guard would say) and if you ask the guard that tells the truth he would tell you the door that leads to death (because that is what the lying guard would actually say if you asked him which way was freedom) so either way you take the opposite door that the guard you asked said and it will go to freedom
-Darth Simon
OK I think that might solve the problem, and I'll accept that answer (you get the next riddle), but my answer would be:
"Is the guard who tells the truth guarding the door for the exit?"
If he says "yes", go though his door. If he says "no", go to the other door. I'll let you guys do the thinking on this one, as it's quite logical.