Table: ratings_weekly
Columns: week
sydney
melbourne
brisbane
adelaide
perth
total
weekly_rank

Question: How many episodes aired in Sydney in Week 3?
SQL: SELECT COUNT("sydney") FROM ratings_weekly WHERE "week" = 3

Question: How many viewers were there in Sydney for the episode when there were 334000 in Melbourne?
SQL: SELECT "sydney" FROM ratings_weekly WHERE "melbourne" = 334000

Question: How many Adelaide viewers were there in Week 5?
SQL: SELECT "adelaide" FROM ratings_weekly WHERE "week" = 5

Question: What is the highest number of Brisbane viewers?
SQL: SELECT MAX("brisbane") FROM ratings_weekly