500
What are the three sea creatures that Odysseus and his men have to sail by and how do they survive?
1. Sirens: Odysseus' men put wax in their ears to block out their songs.
2. Scylla: Odysseus has to sacrifice six men, allowing them to be eaten, in order to sail past swiftly.
3. Charybdis: Odysseus must have his ship hug the rocks (getting men eaten by Scylla) in order to avoid being sucked in by this whirlpool.