Question: What country is ranked smaller than 2?
SQL: SELECT "Country" FROM "2-18662685-8" WHERE "Rank" < 2.0;

Question: What is the rank when the time is 6:50.48?
SQL: SELECT "Rank" FROM "2-18662685-8" WHERE "Time" = '6:50.48';

Question: What is the highest rank with the notes of SA/B, and a time of 6:39.07?
SQL: SELECT MAX("Rank") FROM "2-18662685-8" WHERE "Notes" = 'SA/B' AND "Time" = '6:39.07';

Question: What shows for notes when rank is more than 4, and country is South Korea?
SQL: SELECT "Notes" FROM "2-18662685-8" WHERE "Rank" > 4.0 AND "Country" = 'South Korea';