Which alphabet is a part of our body?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

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?

Spot 5 differences in two Christmas tree below:

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

What is the end of everything?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

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?