Identify the hidden meaning behind this picture?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

When can we add 2 to 11 and get 1 as the correct answer?

What is both possible and impossible at the same time?

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

What is the below Rebus indicate?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?