Table: grand_slam_athletes
Columns: col
player
age
australian_open
french_open
wimbledon
us_open

Question: What is the number for the french open 1974?
SQL: SELECT MAX("col") FROM grand_slam_athletes WHERE "french_open" = 1974

Question: When was the Australian open?
SQL: SELECT MAX("australian_open") FROM grand_slam_athletes

Question: How many ages have Maureen Connolly Brinker as the player?
SQL: SELECT COUNT("age") FROM grand_slam_athletes WHERE "player" = 'Maureen Connolly Brinker'

Question: When is the French Open when serena williams is the player?
SQL: SELECT MIN("french_open") FROM grand_slam_athletes WHERE "player" = 'Serena Williams'