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?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

What English word has three consecutive double letters?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

What kind of tree can you carry in your hand?

Find the missing number in the sequence below: