Which country has a tradition called 'Julbok' where a goat made of straw is used as a festive ornament?

Sweden

What name is given to molten rock beneath Earth's surface? Which animal has humps filled with fat to survive desert conditions? In Operation, who is the fictional patient players 'operate' on? Which British group recorded the 1985 Live Aid charity single "Do They Know It's Christmas"? What sweet treat is commonly baked into a twisted shape for Easter in Greece, often flavored with mahlepi?