There are 2 isalands connected by a road. They are the Island of Truth and the Island of Lies. You live in the Island of Truth. One day, you get lost on the road that connects the two islands. A villager comes from an island, but you don’t know from which. Any villager is only allowed to answer one question a day. You figure out that this villager has not yet answered a question, without asking him. Can you find which island is the Island of Truth? Details: 1. All villagers on the Island of Truth always tell the truth. 2. All villagers on the Island of Lies always tell a lie. 3. The villager knows which island is which.
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You can do this by asking “Where do you live?” He will point you to the Island of Truth, no matter where he actually lives.