CREATE TABLE table_43892 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Ground" TEXT, "Date" TEXT, "Time" TEXT)

What is Time, when Ground is Waverley Park, and when Away Team is Footscray?
SELECT "Time" FROM table_43892 WHERE "Ground" = 'waverley park' AND "Away team" = 'footscray'
SELECT "Time" FROM "table_43892" WHERE "Away team" = 'footscray' AND "Ground" = 'waverley park'