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 Missing Number In the Sequence.
6 25 64 ? 32 1

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

What is the difference between a jeweller and a jailer?

What is the next number in this matchsticks series riddle?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

I am the fastest animal but cannot climb the tree. What am I?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Can you make four (4) nines (9) equal 100?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?