Answer:
Walk on the living, they don’t even mumble. Walk on the dead, they mutter and grumble. What are they?
I mirror your actions.
I am like thunder in your cranium
I have been the beginning of ideas for all time yet I am just one simple small object the things that you can use me for can be frustrating and also I can be pretty. I have some of the most valuable thing in the world on me yet almost everyone owns me.
You heard me before and then again. Afterward I die until you call me again.
No matter how little or how much you use me, you change me every month.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic