Hourglass Time Puzzle - 25 DecemberThere are 2 sand hourglasses.
The small one can measure 5 hours and the large one can measure 7 hours.
How can we measure 16 hours with 2 sand hourglasses running together ?
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Hourglass Time Puzzle - 25 DecemberLabels: Difficulty Level 3/5, Interview Puzzle, Logic Puzzles