question: What is the highest number of games won where less than 21 games were conceded and less than 18 games were actually played?
answer: SELECT MAX(won__pg_) FROM table_name_85 WHERE goals_conceded__gc_ < 21 AND played__pj_ < 18
context: CREATE TABLE table_name_85 (won__pg_ INTEGER, goals_conceded__gc_ VARCHAR, played__pj_ VARCHAR)