Based on the clue '1 of the 2 south american countries whose mainland...', what is the answer?

Based on the clue '1 of the 2 scripts that got billy wilder into the ...', what is the answer? What is associated with: 1 of the 2 shows that debuted in the fall of 1988 with a murphy in the title? What is associated with: 1 of the 2 songs which topped the charts during sept 1962 both girls names starting with s? Based on the clue '1 of the 2 south american countries directly east ...', what is the answer? Based on the clue '1 of the 2 squares that say pay', what is the answer? Based on the clue '1 of the 2 things the lord rained upon the cities ...', what is the answer? Based on the clue '1 of the 2 towns in which calendars are forever st...', what is the answer? Based on the clue '1 of the 2 units each 3 letters long starting wit...', what is the answer?