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?

Different lights make me strange by changing me into different sizes. What am I?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

Solve the equation in the image by looking at the pattern closely.

What Adam and Eve do not have but the rest of the people have?

What is harder to catch the faster you run?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

What do you answer even though it never asks you questions?