CREATE TABLE "table1_21666472_1" (
  "no_in_total" text,
  "no_in_series" text,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text
);

Question: What number in series is "Diamonds"?
SQL: SELECT "no_in_series" FROM "table1_21666472_1" WHERE "title"='\"Diamonds\"';

Question: Who directed "A Tale of Two Hitmen"?
SQL: SELECT "directed_by" FROM "table1_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 "table1_21666472_1" WHERE "written_by"='Greg Haddrick';

Question: What number in series is "Judas Kiss"?
SQL: SELECT "no_in_series" FROM "table1_21666472_1" WHERE "title"='\"Judas Kiss\"';

Question: What was the original airdate of "A Nice Little Earner"?
SQL: SELECT "original_air_date" FROM "table1_21666472_1" WHERE "title"='\"A Nice Little Earner\"';