Answer:
What goes in the water black and comes out red?
I will go within you and destroy you. Only because you wanted me too
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead.
I will disappear every time you say my name. What am I?
I march before armies a thousand salute me. My fall can bring victory but no one would shoot me. The wind is my lover one-legged am I. Name me and see me at home in the sky.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.