Question: What is the total heat ranked higher than 7?
SQL: SELECT SUM("Heat") FROM "2-18666566-3" WHERE "Rank" > 7.0;

Question: Which cyclist is from Australia?
SQL: SELECT "Cyclist" FROM "2-18666566-3" WHERE "Nation" = 'Australia';

Question: Which nation has a heat of 4, and is ranked 8?
SQL: SELECT "Nation" FROM "2-18666566-3" WHERE "Heat" = 4.0 AND "Rank" = 8.0;