The answer to last week’s puzzle lies in remembering what happens when you put a rod on a diagonal inside a square box.
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But no technology is perfect. To counter EMP cannons, drone makers can shield their electronics in a Faraday cage.
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About last week’s Micro Softy: You CAN have a tie in 3D Tic Tac Toe. We illustrate it. And we show what the 4D game is like.
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To solve the Barnum’s Circus ticket receipts puzzle, recall that X, Y and Z must all be whole numbers. Algebra then enables us to work out the solution.
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The solution to Micro Softy 22, given here, depends on the assumptions we make about Timmy’s surgeon.
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This week’s puzzler asks: Can a child’s father be dead and alive at the same time? Or is there another solution?
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In this week’s challenge, you don’t know how many pill bottles, if any, have been laced with fentanyl. Can you still discover the truth with a single weighing?
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About the “Bermuda Triangle” puzzle: Look closely. Are they both really triangles?
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The solution to the Twins Paradox lies in considering the possibility that Curt and Rod were not alone in the womb.
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About the mixed-up bags of marbles: The key question is, from which bag would drawing a marble give you the most information?
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The spectrum used for wireless communication and radar is filling up fast and spectrum sharing offers a solution to the looming crisis.
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There’s a rough solution to the “leaky bucket” problem but an exact solution requires some use of fluid dynamics. And the Moon, surprisingly, changes nothing.
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One hint for the solution to the hot washer problem, given here, is the old trick for getting a tight lid off a jar: Running hot water over it.
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The answer to last week’s Micro Softy turns on the question of what form of currency Claire gave the blind ticket seller. Did you guess it right?
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About last week’s solution, given here: If you code, the second part of the puzzle could also be offered to a computer.
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These puzzles, associated with the great mathematician Leonard Euler (1707‒1783), have a practical use, for example, in laying water pipes.
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The recent ruling is an important step in the right direction although much litigation will ensue.
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This classic puzzle in simple graph theory resulted in a commonly used phrase. Can you guess it?
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To solve this Micro Softy, you need to pinpoint the flaw in the logic that hinges on the Law of Conservation of Money.
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Probability problems typically come down to analyzing the choices carefully and picking the most promising one.
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