mutual knowledge

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    The Logic Puzzle You Can Only Solve with Your Brightest Friend

    You have to cleverly build “common knowledge” to solve this lethal riddle.Wikicommons You’ve been caught snooping around a spooky graveyard with your best friend. The caretaker, a bored old man fond of riddles (and not so fond of trespassers), imprisons each of you in a different room inside the storage shed, and, taking your phones, […]