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Welcome to The Riddler. Every week over the past eight years, we have offered up problems related to the things we hold dear around here: math, logic and probab…

United statesBen knoxTom hanrahanDavid kuplicZach wissner grossSantul nerkarTabitha torgersenMaya sweedlerTabitha togersenMichael dehayeOliver roederChadwick matlinRiddler vince vatterMartin stearneRiddler research labThanks for all the