Answer:
Forward I am heavy backward I am not. What am I?
I was was before was was was.
I have a lot to say but can't be heard because I can't speak one single word. What am I?
I am made by nature soft as silk; A puffy cloud white as milk; Snow tops this tropical crop; The dirtiest part of a mop.
I am an instrument that you can hear but cannot see or touch. What am I?
What language does a billboard speak?