Question: What is the sum of the gold medals of the nation with 4 silvers and more than 6 total medals?
SQL: SELECT SUM("Gold") FROM "2-18744005-4" WHERE "Silver" = 4.0 AND "Total" > 6.0;

Question: What is the highest number of bronze medals of west germany, which has more than 0 golds?
SQL: SELECT MAX("Bronze") FROM "2-18744005-4" WHERE "Nation" = 'west germany' AND "Gold" > 0.0;

Question: What is the average total medals of the Soviet Union, which has more than 2 bronze and more than 0 silver medals?
SQL: SELECT AVG("Total") FROM "2-18744005-4" WHERE "Bronze" > 2.0 AND "Silver" > 0.0 AND "Nation" = 'Soviet Union';