Question: What is the average silver for a rank less than 8, were there were no more than 4 bronze and 12 in total?
SQL: SELECT AVG("Silver") FROM "2-12281192-3" WHERE "Rank" < 8.0 AND "Total" = 12.0 AND "Bronze" < 4.0;

Question: How many gold did gabon have when they were ranked no higher than 17, and less than 7 in total?
SQL: SELECT SUM("Gold") FROM "2-12281192-3" WHERE "Total" < 7.0 AND "Nation" = 'gabon' AND "Rank" < 17.0;