A plane crashed between the border of Mexico and America. Where do you bury the survivors?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

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?

Solve the rebus riddle in the picture below.

What does this mathematical rebus means ?

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

Which point will the car reach to go out?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?