Which sea creature produces pearls?

Oyster

Who was the goddess of discord who threw the 'Apple of Discord' contributing to Trojan War events? Who constructed wings to escape Crete but lost his son who flew too close to the sun? What is the maximum permitted weight for a boxing glove in professional heavyweight matches? Who was the lead singer of The Stooges? In Marvel comics, who was Reed Richards romantically linked to and eventually married?