Replace the question mark with the number below given a simple math problem.

A woman named Maria was at the funeral of her mother. She met a nice young man that she had never seen before and after the service, they spent a bit of time together. Then she got busy and didn’t get his name or phone number before he left. She tried to find him, but no one knew who he was or how to contact him. A few weeks later, Maria’s older sister dies and the police suspect murder. Who killed the sister?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

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

I know a nine-letter word having only one vowel.
Do you ?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What's the best place to go shopping in the ocean?