CREATE TABLE table_name_84 (circuit VARCHAR, pole_position VARCHAR, fastest_lap VARCHAR)

What is the name of the circuit when Jack Brabham is in the pole position and Graham Hill has the fastest lap?
SELECT circuit FROM table_name_84 WHERE pole_position = "jack brabham" AND fastest_lap = "graham hill"
SELECT "circuit" FROM "table_name_84" WHERE "fastest_lap" = "graham hill" AND "jack brabham" = "pole_position"