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?

Our product and our sum always give the same answer. Who are we?

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???

What is the largest number you can write with just 3 digits?

Why is the longest human nose just 11 inches?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

You need to remove two matchsticks to make the below equation true. Can you do it ?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

I look at you, you look at me I raise my right, you raise your left. What am I?