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 Adam and Eve do not have but the rest of the people have?

Next Number in the Series,

5, 16, 49, 104, ?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145