Identify the hidden meaning behind this picture?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

A detective visits his friend John just to discover that John's neighbour Dr Jacob was murdered. Dr Jacob, who is a mathematician wrote the murderer's name in a code word "Hcqtfz". There were five suspects
1. Ajit
2. Pankaj
3. Ganpat
4. Deenu
5. Hariya

The Detective was instantly able to find the murderer.
Can you?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?

A woman shoots her husband.

Then she holds him under water for over 5 minutes.

Finally, she hangs him.

But 5 minutes later they both go out together and enjoy a wonderful dinner together.

How can this be?

I make two people out of one. What am I?

Who can jump higher than a Mountain?

Whats the next number in the below number sequence pattern.

Forwards I am heavy, backward I am not. What am I?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?