1. Sophocles.
2. This one is not a reference to Ancient Greek mythology but a comparison between the God of the Bible to Zeus.
(Personal opinion). The God of the Old Testament resembles a great deal to Zeus as in : He is revengeful but fair, appears when necessary in a divine form or sometimes indirectly butt he is always there to protect and to serve.
3. Hercules killed his wife Megara and his three children, under influence by Hera (Zeus's wife). He cleansed his soul by serving under King Euristhenes for 12 years (that was the order given to Hercules by the Delphi Oracle priestess).
4. The Greeks
5. He was heading back to his kingdom, the island of Ithaki.
The men back in his palace were his rivals for the throne of Ithaki. Since he was gone for 20 years (10 years on the Trojan War and 10 years on the sea) his queen and wife Penelope, had to remarry but she was delaying it always believing Odysseus would return one day.
Odysseas, originaly hiding as a beggar, seeked shelter at the palace, the very night that Penelope had stopped hoping he would return.
Penelope challenged the "mnistires" to shoot an arrow with Odysseas's arch, something that only one person could even bend (Odysseas him self).
With the help of his son Telemahos and his faithful servant Evmaios, they killed all 40 of the "mnistires" during the challenge and he got his kingdom back and his wife Penelope.
Okay... this is a synopsis. If you can read Greek, here is a good link for Odysseas's final battle.
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Hercules' last stunt was killing centaur Nessus (Nessus attempted to steal away from Hercules, his wife Dianera).
While on his last breath, Nessus told Dianera that Hercules did not love her anymore and that if she wanted him to love her again, she needed to dump in his blood a chiton (a toga like cloth, but that was not truth, it was a lie fron Nessus, to revenge Hercules).
She did so, but that was the last trick of Nessus. His blood was poisoned from Hercules's arrows and that alone drove Hercules insane that made him climb mount Oeti and start a fire. And he threw him self in the fire.
Upon his death, Zeus took him in mount Olympus and arranged that Hercules wedded the godess of Youth, Ivi.