Answer:
1. The father and mother is Zeus and Danaë.
2. King Acrisius had received a prophecy revealing his grandson, Perseus, would kill him.
3. Polydectes was the king of the island of Seriphos in Greek mythology. He was the ruler of the island when Danae and her son Perseus were washed ashore and his brother Dictys saved them.
4. Stheno, Euryale, and Medusa.
5. He was aided by Hermes and Athena, Perseus pressed the Graiae, sisters of the Gorgons, into helping him by seizing the one eye and one tooth that the sisters shared and not returning them until they provided him with winged sandals (which enabled him to fly), the cap of Hades (which conferred invisibility), a curved sword, or sickle, to decapitate Medusa, and a bag in which to conceal the head.
6. Medusa saw her reflection first causing her powers to backfire on her instead of on Perseus.