Answer:
What is harder to catch the faster you run?
I follow you all the time and copy your every move but you can't touch me or catch me. What am I?
I am tomorrow's yesterday and yesterday's tomorrow. What am I?
I will go within you and destroy you. Only because you wanted me too
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
What never gets any wetter no matter how hard it rains?