What Am I Riddles

Question: Round like a apple deep like a cup yet all the kings horses can’t pull it up.

Question: I am flat, I am sharp; but I cannot hurt you. What am I?

Question: I can be found all around the world I can be stricken but not feel it Both the moon and the sun know who I am I can be seen twice a day and 730 times a year What am I?

Question: When you don't have enough of me, you feel a kind of gloom. But when you are using me, it is time that you consume. What am I?

Question: What has rivers but no water, forest but no trees and cities but no people.