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

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

Asked by Neha on 03 Nov 2024


Who can jump higher than a Mountain?

Asked by Neha on 18 Oct 2023

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

Asked by Neha on 14 May 2021


If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Asked by Neha on 18 Feb 2022

What is wrong in the below Picture?

Find the wrong in Picture

Asked by Neha on 12 Feb 2023

Trying to tease Birbal, Akbar gave him one gold coin and ask him to buy
* something for him to eat
* something for him to drink.
* something to feed the cows
* something to plant in the garden
and most important you need to buy only one thing.

What must Birbal buy to silence Akbar?

Asked by Neha on 10 May 2021


Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?

Asked by Neha on 01 Jun 2024

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

Asked by Neha on 03 Mar 2024

Which Burger Is Different in below image?

Odd Man out

Asked by Neha on 09 Feb 2023


I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

Asked by Neha on 01 Nov 2025

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In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki