Manhole Shape

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




Similar Riddles

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Asked by Neha on 17 May 2021


Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Asked by Neha on 13 Feb 2025

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Asked by Neha on 07 Feb 2025


Find the next number in the series.
1 10 24 43 67 ?

Asked by Neha on 26 Jun 2024

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

Asked by Neha on 15 Mar 2022

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

Asked by Neha on 13 Mar 2024


Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

Asked by Neha on 16 Apr 2025

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

Asked by Neha on 12 Apr 2023

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

Asked by Neha on 05 Oct 2024


It belongs to you, but other people use it more than you do. What is it?

Asked by Neha on 19 Feb 2022

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Amazing Facts

Crossword

The day before the 1996 U.S. presidential election, the NYT Crossword contained the clue “Lead story in tomorrow’s newspaper,” the puzzle was built so that both electoral outcomes were correct answers, requiring 7 other clues to have dual responses.