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?

Find the next number in the series.
1 10 24 43 67 ?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

What is the below Rebus indicate?

I taste better than I can smell. Who am I?