How can one talk without saying a single word?

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

I have no life, but I can die. What am I?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

No matter how little or how much you use me, you change me every month. What am I?

What number when divided in half becomes zero?

Which point will the car reach to go out?

What will you call your mother's brother's brother-in-law?

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

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?