Question: What is the main span in feet from a year of 2009 or more recent with a rank less than 94 and 1,310 main span metres?
SQL: SELECT "Main span feet" FROM "2-1604842-1" WHERE "Year opened" > 2009.0 AND "Rank" < 94.0 AND "Main span metres" = '1,310';

Question: What is the main span feet from opening year of 1936 in the United States with a rank greater than 47 and 421 main span metres?
SQL: SELECT "Main span feet" FROM "2-1604842-1" WHERE "Year opened" = 1936.0 AND "Country" = 'United States' AND "Rank" > 47.0 AND "Main span metres" = '421';

Question: What is the highest rank from the year greater than 2010 with 430 main span metres?
SQL: SELECT MAX("Rank") FROM "2-1604842-1" WHERE "Year opened" > 2010.0 AND "Main span metres" = '430';

Question: What is the oldest year with a main span feet of 1,640 in South Korea?
SQL: SELECT MIN("Year opened") FROM "2-1604842-1" WHERE "Main span feet" = '1,640' AND "Country" = 'South Korea';