Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

How many Watermelons are there in the below picture?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

What number do you get when you multiply all of the numbers on a telephone's number pad?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?