Answer:
I will disappear every time you say my name. What am I?
You can see it everyday, but cannot touch it at will. What is it?
It is greater than God more evil than the devil. The poor have it the rich need it. If you eat it you will die. What is it?
A move made popular by the King of Pop.
I am an English word that is as long as I am valued. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.