This extraordinary lateral thinking question will make you think outside the box. Why are manhole covers round? Can you answer this intriguing riddle? This question looks very simple, but the answer solves a practical problem. Let's see how quickly you can come up with the correct answer to this quick-thinking puzzle!
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| Lateral Thinking Puzzle: Mystery of Round Manhole Covers |
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Is it because the when we use other shapes like rectangles or squares, they can rotate about diagonals and fall down?
Yes, you are right. Diagonal will bigger than side for a square or rectangular shape and these can fall down along the diagonals if rotated.