Replace the question mark with the correct number.

Replace the question mark with the correct number below.

Can you write down eight eights so that they add up to one thousand?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?

During which month do people sleep the least?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

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?

A generous owner of a company decided to give a bonus of $45 to every man and $60 to every woman on his birthday. But only one-ninth of the men and one-twelfth of the women were present to take the bonus.

Can you calculate the amount of money the owner spent if there were 3552 employees?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?