Answer:
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
If you have me, you want to share me. Once you share me, you won't have me. What am I?
Travel a mile and I will change, travel a million and I will end as I started. What am I?
I am in the past never in the future. I don't exist but have existed. I saw what you saw and that is what I will ever see.
I fly when I'm born. I lie when I'm alive. I run when I'm dead. What am I?
A little house full of meat, no door to go in and eat.