i can answer the 1 question The reason many Greek Gods and Goddesses were depicted in sculpture was because the people who created, surrounded or viewed it wanted to be protected by the certain God or Goddess.
So, of course, they were always portrayed in their strongest form, they were armed with either a weapon or an implement that aided them in doing their "job". It's not that hard to work this out when you see the sculptures, have a look around at some images, and draw your own conclusions as well. That's the best way to do it
