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?

What does the rebus below mean?

TEN BADTION

Christina, Allison and Lena are 3 daughters of John a well-known Mathematician, When I asked John the age of their daughters. He replied "The current age of her daughters is prime. Also, the difference between their ages is also prime."

How old are the daughters?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

What Time Should the last watch show in the below figure?

A mad serial killer kidnaps people and forces them to play the game of 2 pills with them, In this game, there are pills in the table and one of them is normal pill while the other one is deadly poisonous.
The victim will choose one pill and the killer will pick the other pill and both simultaneously will swallow the pill with water.
victim dies every time.

One day the serial killer kidnaps the Joseph and forces him to play the same game with him.

Joseph solves the mystery of the two pills and remains alive.

Explain?

Which wheel of car does not rotate when you turn your car right?

Eight of us go fourth, not back, to protect our king from an attack. What are we?