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 do you get if you add 2 to 100 four times?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

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

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

What does man love more than life, hate more than death or mortal strife; That which contented men desire; the poor have, the rich require; the miser spends, the spendthrift saves, and all men carry to their graves?