CREATE TABLE table_75599 ("Year" FLOAT, "Class" CLOB, "Team" CLOB, "Points" FLOAT, "Rank" CLOB, "Wins" FLOAT)

Which Wins is the highest one that has a Class of 500cc, and Points smaller than 6?
SELECT MAX("Wins") FROM table_75599 WHERE "Class" = '500cc' AND "Points" < '6'
SELECT MAX("Wins") FROM "table_75599" WHERE "Class" = '500cc' AND "Points" < '6'