Which mathematician lived from about 287 to 212 B.C.?

What is the French word for "mister," as used in Marseille? What word means a marsh or bog, or any muddled, confusing situation? Which adjective, used in Marxist theory, describes the middle class? A Maryland boy's 1949 exorcism was the main source for which author's 1971 bestseller? A mature Rome Beauty apple has skin of what color? A May 1999 White House ceremony unveiled a newly designed U.S. $1 coin featuring which historical figure? Which McDonald's pork patty sandwich comes back to the menu only for limited times? A constitutional amendment defeated in 1990 would have allowed states to prosecute people who desecrated what?