In which country did the sport of Taekwondo originate?

South Korea

Who is the Titaness mother of Helios, the Greek sun-god? Who voiced Remy the rat in Pixar's "Ratatouille"? Which bird lays the largest eggs relative to its body size? Who was known as the 'Mad Monk' in Russian History due to his influence over the royal family? What hormone stimulates milk production in mammals?