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

Find the number of squares in the below picture

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Forwards I am heavy, backward I am not. What am I?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

What is the word or phrase below?
R | E | A | D