Answer:
I am heavy forward, but backward I'm not. What am I?
The 8 of us go forth and back to protect our king from a foes attack
I may seem real but it always turns out I was never there in the first place... you only see me during a certain resting stage.
I can speak with my hard metal tongue. But I cannot breathe for I have no lung
The more you have me, the less you see. Shine a light on me and I flee. What am I?
When is it bad luck to see a black cat?