What Greek hero fought in the Trojan War and was invulnerable except for his heel?

Achilles

What unusual object does Phoebe inherit thinking it’s her mother’s? Which WNBA player appeared in an NBA All-Star weekend event? What class do snails and octopuses belong to? Who established the colony of Providence Plantation, later Rhode Island, after being expelled from Massachusetts Bay Colony? What shape has only one edge and one surface?