Which sea is bordered by Georgia on its eastern side and Bulgaria on its western side?

Which pop artist of comics-inspired images was awarded the National Medal of Arts in 1995? Which longtime United Mine Workers president, later its president emeritus, died in 1969? Which Russian-American novelist published his early Russian-language works under the pen name V. Sirin? Which scouring powder is named for a mighty Greek warrior who fought in the Trojan War? Which singer, long associated with Key West and born on Christmas Day, recorded the song "Christmas Island"? Which small Virginia stream, about 30 miles from Washington, D.C., gave its name to two Civil War battles? What is the name of the smallest mouse of the Americas, found from the southern U.S. into Central America? Besides tennis, which other sport is named in the full title of the All England Club that hosts Wimbledon?