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

How can a man go eight days without sleep?

Which word does the below Plexor means ?

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

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

In the image below, can you find the value of an angle(y)

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

Can you find out the missing number in the grid?