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?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Why did Buffon take the goal with him after every Juventus match?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

Keyboard words are not in alphabetical order, Why?

What building has the most stories?

Which digit occurred maximum times between the number 1 and 1000?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?