Which Winter Olympic discipline involves racing head-first on a small sled?

Skeleton

Which god ruled the sea in Greek mythology? What racing event is known for the phrase 'Gentlemen, start your engines'? Which tennis player is known as the 'Swiss Maestro'? Which country hosts a town called "North Pole" that receives thousands of letters each Christmas? What speech by Abraham Lincoln stated 'a government of the people, by the people, for the people'?