How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

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 a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

If eleven plus two equals one, what does nine plus five equal?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

What happened when the wheel was invented?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?