Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

Can you find the 09 errors in the picture below?

What can go up a chimney down, but can’t go down a chimney up?

how come the second man dies?

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

Why do you find that most of the buildings are deprived of the 13th floor?

What Adam and Eve do not have but the rest of the people have?