As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

What is the next number in this series?

4,12,84,3612....

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

Which number should replace the question mark?

A car is crossing a 20 km-long bridge. The bridge can support at most 1500kg of weight over it. If somehow, the weight on the bridge becomes more than that, it will break.

Now, the weight of the car is exactly 1500kg. At the midway, a bird comes and sits on the roof of the car. This bird weighs exactly 200 grams.
Can you tell if the bridge breaks at this point or not?

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?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

How many triangles are there on the puzzle below?

Solve the following series:
AZ, GT, MN, __, YB