Answer:
What has thirteen hearts But no body or soul?
My first master has four legs, my second master has two. My first I serve in life, my second I serve in death. Tough I am, yet soft beside. Against ladies cheeks I often reside.
Once they sailed the sea, now they surf the web
A precious stone, as clear as diamond. Seek it out whilst the sun's near the horizon. Though you can walk on water with its power, Try to keep it, and it'll vanish within an hour.
What has six faces, But does not wear makeup. It also has twenty-one eyes, But cannot see?
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.