CREATE TABLE table_name_74 (episode NUMBER, date VARCHAR2, performer_1 VARCHAR2, performer_3 VARCHAR2)

Performer 1 of greg proops, and a Performer 3 of ryan stiles, and a Date of 25 august 1995 is which average episode?
SELECT AVG(episode) FROM table_name_74 WHERE performer_1 = "greg proops" AND performer_3 = "ryan stiles" AND date = "25 august 1995"
SELECT AVG("episode") FROM "table_name_74" WHERE "25 august 1995" = "date" AND "greg proops" = "performer_1" AND "performer_3" = "ryan stiles"