Question: What is the score in the final of the tournament with a Clay surface on 18 April 2011?
SQL: SELECT "Score in the final" FROM "2-18797830-2" WHERE "Surface" = 'Clay' AND "Date" = '18 April 2011';

Question: What is the score in the final of the tournament with a Hard surface?
SQL: SELECT "Score in the final" FROM "2-18797830-2" WHERE "Surface" = 'Hard';

Question: Who is the opponent in the final on 24 November 2008?
SQL: SELECT "Opponent in the final" FROM "2-18797830-2" WHERE "Date" = '24 November 2008';