Question: What is the rank for the man from China with notes of QS?
SQL: SELECT MAX("Rank") FROM "2-18646504-4" WHERE "Notes" = 'QS' AND "Country" = 'China';

Question: What is the rank for the competitor from Bulgaria?
SQL: SELECT MIN("Rank") FROM "2-18646504-4" WHERE "Country" = 'Bulgaria';

Question: Which athlete is ranked below 5 and is from China?
SQL: SELECT "Athletes" FROM "2-18646504-4" WHERE "Rank" < 5.0 AND "Country" = 'China';