He told his men about the sirens, sharing what Circe had told him. gave them beeswax to plug their ears from their song.
So that he could hear their enchanting, tempting song, Odysseus instructed his men to tie him to the mast, and only lash him tighter no matter what he says until they are past the sirens.
Odysseus filled the ears of the sailors with wax before they tied him to the mast. The sailors couldn't hear the siren's song and Odysseus couldn't move.
Yes; the Sirens sang their enchanted song, and attempted to lure Odysseus and his men to their doom.
They Sing
He was warned about the Sirens by one of the spirits he met in the underworld.
The sirens are a danger that Odysseus and his men must pass to return home.
the sweet songs of the sirens lead their men to death
He plugged the sirens ears and avoided the Charybdis
he made his crew put wax earplugs in their ears. he himself wanted to hear the sirens beautiful music, so he asked his crew to tie him to the mast, the foundation of a sail. Odysseus's crew ties Odysseus very tightly to the mast, and disarmed him. When the were going past the sirens, Odysseus was screaming and yelling at his crew to let him go to the sirens. The crew obviously did not hear him because they had the wax ear plugs. That is how Odysseus saved his crew from the sirens.
he ate them
Circe
Book 12
I believe you are referring to the sirens. They sirens are women Odysseus stumbles upon on his journey who sexually lure Odysseus and distract him from his ultimate goal.