During which month do people sleep the least?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

I don't get anymore wetter, no matter how much rain falls on me.

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

What number do you get when you multiply all of the numbers on a telephone's number pad?

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?