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Hourglasses 1 Puzzle
The Puzzle:
You need to boil eggs for exactly 9 minutes, or else the visiting Duchess will complain, and you will lose your job as head chef.
But you have only 2 Hourglasses, one measures 7 minutes, and the other measures 4 minutes. How can you correctly measure 9 minutes?
Do you have the answer? Check against our solution!