Answer:
Deposit red liquid in me.
Break me and I am better, immediately set and harder to be broken again. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.
I have three heads. Cut off one I become stronger. Cut off two I become ten.
I have roots nobody sees. I am taller than trees. Up, up I go but I never grow. What am I?
What language does a billboard speak?