Answer:
I am nothing really at all, Yet I am easily found; Ignore me at your own peril, and you might end up crowned!
What tastes better than it smells?
When it is alive we sing, when it is dead we clap our hands. What is it?
What can be measured but not seen?
I follow the orders of only two. I respect the work of only two. I am in constant battles with many, Though one surpassed them all. With forces joined, We created hell, Until our mutual enemy fell. Who am I?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.