Why is it against the law for a man living in Delhi to be buried in Mumbai?

In the image given, you can find several triangles. Can you count them all?

Can you find out the total number of triangles in the given figure?

Vin Diesel is pulling a theft and has planned to run away with all the cash kept in the safe. But the only way to open the safe is the 13 character password. He has a set of five clues given to him by a trustworthy source.

Exactly two of the below statements are false.
The password is contained within this sentence.
The password is not in this hint.
The password is within only one of these statements.
At least one of the above statements is a lie.

How many letters are in the alphabet?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

Our product and our sum always give the same answer. Who are we?

How many sides does a circle have?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?