Manhole Shape

Why do we preferably have round manhole covers and not square ones?




Similar Riddles

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

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If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

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Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

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My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

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I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

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Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

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In a kingdom, King George did not allow any citizen to visit the world outside. Also, only a person with proper paperwork was allowed to enter or he was sent back. A wooden bridge was what connected the kingdom to the world. The king had appointed a sharpshooter who would check the every five minutes on the bridge to check. After checking, he would go back to his hut and return exactly after five minutes again. The bridge took 9 minutes to cross.

A merchant was able to escape the kingdom without harming the shooter. How?

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I have no life, but I can die. What am I?

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Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

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What is red and smells like blue paint?

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Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.