Misc: Who is the greek equivalent of the roman god Diana?

Questions

In 1858, three years before becoming president, Abraham Lincoln became senator of which state?

Which future president was the United States Representative to the UN under the Nixon administration?

Who was the first president to visit all 50 states?

Who was the first president to win the Nobel Peace prize?

Which president said in a Playboy interview, that he had 'committed adultery in my heart many times'?