Answer:
I have memories but none of my own whatever's on my inside is what is shown. If I'm ever different it's because you changed me I feel like a decoration here for you to arrange me.
What gets sharper the more you use it?
I have thirteen hearts but no body or soul.
Lighter than feather and softer than silk, yet the strongest man in the world cannot hold me for more than a few minutes. What am I?
I march before armies, a thousand salute me. My fall can bring victory, but no one would shoot me. What am I?
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?