Puzzle 57
What is the simplest way of making this equation correct?
Puzzle Copyright © Kevin Stone
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Puzzle 58
Student Accommodation – Logic Puzzles
Alex, Bret, Chris, Derek, Eddie, Fred, Greg, Harold, and John are nine students who live in a three storey building, with three rooms on each floor. A room in the West wing, one in the centre, and one in the East wing. If you look directly at the building, the left side is West and the right side is East. Each student is assigned exactly one room. Can you find where each of their rooms is:
Harold does not live on the bottom floor.
Fred lives directly above John and directly next to Bret (who lives in the West wing).
Eddie lives in the East wing and one floor higher than Fred.
Derek lives directly above Fred.
Greg lives directly above Chris.
Puzzle Copyright © Chris Joh
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Puzzle 59
You have a barrel, filled to the top with water, which weighs 150 pounds.
What can you add to the barrel in order to make it lighter?
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Puzzle 60
Each empty white square in the grid contains one of the numbers 1, 2, 3, …, 8. Each of the horizontal and vertical equations must be true, and each number must be used exactly once.
Puzzle Copyright © Erich Friedman
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