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?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Decode the movie name from the below picture?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

People make me, save me, change me, raise me. What am I?

Do You See It?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?