Question: What round was the match at Westpac Stadium that had the Newcastle Jets as the away team?
SQL: SELECT "Round" FROM "2-18793550-6" WHERE "Venue" = 'Westpac Stadium' AND "Away" = 'Newcastle Jets';

Question: On what weekday was the match that had Perth Glory as the away team?
SQL: SELECT "Weekday" FROM "2-18793550-6" WHERE "Away" = 'Perth Glory';