Answer:
Born of sorrow, grows with age, you need a lot to be a sage. What is it?
You are my brother, but I am not your brother. Who am I?
Dead on the field lie ten soldiers in white killed by one blade yet there was no fight. What are they?
What happens when you throw a green stone into the Red Sea?
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?