Whose portrait appears on the U.S. one-dollar bill?

Which country gave the Statue of Liberty to the United States? In what year was the Statue of Liberty dedicated? Which four presidents are carved into Mount Rushmore? In which state is Mount Rushmore located? Whose portrait appears on the U.S. five-dollar bill? Whose portrait appears on the U.S. twenty-dollar bill? Whose portrait appears on the U.S. fifty-dollar bill? Whose portrait appears on the U.S. two-dollar bill?