CREATE TABLE "singles_titles_10" (
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score" text
);

Question: What surface did Smeets play on during the Kuwait tournament?
SQL: SELECT "surface" FROM "singles_titles_10" WHERE "tournament"='kuwait';

Question: What tournament did Smeets play against Mark nielsen?
SQL: SELECT "tournament" FROM "singles_titles_10" WHERE "opponent_in_the_final"='mark nielsen';

Question: Who was the opponent during the tournament in Kuwait?
SQL: SELECT "opponent_in_the_final" FROM "singles_titles_10" WHERE "tournament"='kuwait';