Answer:
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
I must be broken before you can use me.
I break away from my pack. I create holes in my victims. I can travel for miles and then disappear. I am part of a dying breed. What am I?
I can be swallowed But I can also swallow you.
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty. What am I?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.