Answer:
I hide but my head is outside. What am I?
Born of sorrow, grows with age, you need a lot to be a sage. What is it?
I am found on Mercury Venus Earth and Mars but not on Jupiter or Saturn. What am I?
I am whole but incomplete. I have no eyes yet I see. You can see and see right through me. My largest part is one fourth of what I once was.
By Moon or by Sun, I shall be found. Yet, if there's no light around, I am undone. What am I?
What is yellow, looks like the moon and has seeds?