Which pop artist's New York studio was known as The Factory?

Which state is nicknamed the "Buckeye State"? Which golfer won the 1997 Masters at age 21 by a record 12 strokes? Which billionaire co-founded a charitable foundation with his then-wife Melinda in 2000, giving it tens of billions of… In 431 BC, Thucydides began writing the history of which war while he was fighting in it? In a 1931 issue of The New Yorker, who quipped, "Theodore Dreiser should ought to write nicer"? In a 1947 novella by John Steinbeck, a diver named Kino finds which valuable title object to pay his child's doctor bil… In a 1961 speech, who said "Ask not what America will do for you, but what together we can do for the freedom of man"? In a 1985 book, which financier called arbitrage "Wall Street's best kept money-making secret"?