Can you place three balls such that the equation shown in the picture holds true?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

10+10 and 11+11 can give you the same answer.

Explain how?

John was piloting a plane behind a car but was never able to overtake it. Why?

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.