Answer:
What word becomes shorter when you add two letters to it?
I shift around though always slowly. I never move more than a few inches at a time. A large movement by me can kill many people. I am huge yet unseen by humans.
Sometimes dark and sometimes bright I make my way among twinkling lights. Seas and oceans obey my call yet mountains I cannot move at all. My face is marred and gray But I'm majestic anyway
I march before armies, a thousand salute me. My fall can bring victory, but no one would shoot me. What am I?
What has feet and legs, and nothing else?
When is it bad luck to see a black cat?