Answer:
Pronounced as one letter but written with three always in evil never in good and always in zebra never in animal. What is it?
I move without wings, between silken strings. I leave as you find my substance behind. What am I?
I row quickly with four oars but never comes out from under my own roof.
I only exist when you are here. Where you never were I can never be.
I am the minerals vital for your good health.
What language does a billboard speak?