An infinite number of mathematicians are standing behind a bar. The first asks the barman for half a pint of beer, the second for a quarter pint, the third an eighth, and so on. How many pints of beer will the barman need to fulfill all mathematicians' wishes?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

Can you decipher the two rows to find the hidden word?

What does a man do only once in his lifetime, but women do once a year after they are 29?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

Can you solve the maths in the below-given picture equation?

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

Solve the puzzle by telling what does below picture means.

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?