Puzzle 2 | Two Gaurd Two Doors One door = freedom, the other = doom. One guard always lies, one always tells the truth. You can ask one question to one guard to find the safe door. Show Answer Answer: Ask either guard: “Which door would the other guard say leads to freedom?” Then go through the other door. Answer: Ask […]
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Puzzle 3| The Bridge & The Torch Four people need to cross a narrow bridge at night. They have just one torch, and at most two people can cross at a time. Their crossing times (alone) are: 1 minute, 2 minutes, 7 minutes, and 10 minutes. When two people cross together, they move at the
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The Classic 3 Lights and 3 Switches Puzzle You are standing outside a windowless room containing three identical light bulbs. Outside the room, there are three switches, each controlling exactly one bulb inside.You may flip the switches as many times as you like, but you may only enter the room once. Once inside, you can’t
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