IAS Interview Question

If it took eight men ten hours to build a wall, how long would it take four men to build it?




Similar Riddles

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

Asked by Neha on 21 Nov 2025


Below rebus represent famous DiCaprio movie. Can you name it?

Decode the Rebus

Asked by Neha on 27 May 2021

A dying old man wants to divide his entire land between his only two sons. Since his only wish is to treat them as equal as both of them have been too good to him, he wants to divide his land equally between them. The problem is that the land is significantly irregular in shape and thus there is no choice of cutting them into two equal halves.

Can you help him divide the land in a manner that both of his sons will be happy?

Asked by Neha on 20 Jun 2023


What two things can you never eat for breakfast?

Asked by Neha on 17 May 2021

Assume there are approximately 5,000,000,000 (5 billion) people on Earth. What would you estimate to be the result, if you multiply together the number of fingers on every person's left hand? (For the purposes of this exercise, thumbs count as fingers, for five fingers per hand.) If you cannot estimate the number then try to guess how long the number would be.

Asked by Neha on 24 Sep 2025

Can you figure out the logic I used to decide the order of the following words:
gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

Asked by Neha on 11 Oct 2024


Where do you go to learn how to make ice cream?

Asked by Neha on 07 Aug 2024

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Asked by Neha on 24 Aug 2024

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

Asked by Neha on 06 Mar 2022


There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

Asked by Neha on 27 Oct 2023

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Amazing Facts

Word ladder puzzle

The word ladder puzzle was invented by Lewis Carroll, author of Alice’s Adventures in Wonderland.