I have just placed some money into one of three boxes: a gold box, a silver box and a lead box. Each box has an inscription. At least one of the inscriptions is true and at least one of them is false. The inscriptions are:
Gold box: The money is not in the silver box.
Silver box: The money is not in this box.
Lead box: The money is in this box.
You can only open one box, and if you open the box containing the money you get to keep the cash. Which box should you open?
If you have not tried to solve it, have a go now. For everyone else, the answer is after the break.
You should open the gold box. If the money were in the silver box, all the inscriptions would be false. If it were in the lead box, all of the inscriptions would be true.
Did you solve it?
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