Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

I add 5 to 9 and get 2. The answer is correct, so what am I?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

What brings you down but never up?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

What is the next number in this series?

4,12,84,3612....

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?