Answer:
I am the yellow hem of the sea's blue skirt.
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around.
Who works when he plays and plays when he works?
A kind of weather that comes your way, but add a "D" and it will run away
The land was white the seed was black it'll take a good scholar to riddle me that. What is it?
I am owned by Old McDonald.