Table schema:
CREATE TABLE table_name_20 (couple VARCHAR, number_of_dances VARCHAR, total VARCHAR, rank_by_average VARCHAR, average VARCHAR)

Question: Which Couple has a Rank by average larger than 3, and an Average larger than 16.5, and a Total smaller than 195, and a Number of dances larger than 3?
SQL: SELECT couple FROM table_name_20 WHERE rank_by_average > 3 AND average > 16.5 AND total < 195 AND number_of_dances > 3