Question: What is the sum of Silver with a Bronze that is larger than 0 with a Gold smaller than 0?
SQL: SELECT SUM("Silver") FROM "2-15807892-2" WHERE "Bronze" > 0.0 AND "Gold" < 0.0;

Question: What is the average Silver with a Total that is smaller than 1?
SQL: SELECT AVG("Silver") FROM "2-15807892-2" WHERE "Total" < 1.0;

Question: What is the lowest Rank with a Nation that is East Germany?
SQL: SELECT MIN("Rank") FROM "2-15807892-2" WHERE "Nation" = 'East Germany';