Question: What number in series is "Diamonds"?
SQL: SELECT "No. in series" FROM "1-21666472-1" WHERE "Title" = '"Diamonds"';

Question: Who directed "A Tale of Two Hitmen"?
SQL: SELECT "Directed by" FROM "1-21666472-1" WHERE "Title" = '"A Tale of Two Hitmen"';

Question: How many number in series's are written by Greg Haddrick?
SQL: SELECT COUNT("No. in series") FROM "1-21666472-1" WHERE "Written by" = 'Greg Haddrick';

Question: What number in series is "Judas Kiss"?
SQL: SELECT "No. in series" FROM "1-21666472-1" WHERE "Title" = '"Judas Kiss"';

Question: What was the original airdate of "A Nice Little Earner"?
SQL: SELECT "Original air date" FROM "1-21666472-1" WHERE "Title" = '"A Nice Little Earner"';