There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?
Give up?
Drag your cursor between the asterisks for the answer:
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Ask one robot what the other robot would say, if it was asked which door was safe. Then go through the other door.
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