CREATE TABLE "series_1" (
  "episode_no" real,
  "airdate" text,
  "viewers" real,
  "bbc_three_weekly_ranking" text,
  "cable_rank" text
);

Question: How many viewers were there for airdate is 22 october 2009?
SQL: SELECT MAX("viewers") FROM "series_1" WHERE "airdate"='22 October 2009';

Question: What is the  cable rank for episode no. 4?
SQL: SELECT "cable_rank" FROM "series_1" WHERE "episode_no"=4;

Question: Where where the bbc three weekly ranking for episode no. 5?
SQL: SELECT "bbc_three_weekly_ranking" FROM "series_1" WHERE "episode_no"=5;

Question: What is the cable rank for bbc three weekly ranking of n/a?
SQL: SELECT "cable_rank" FROM "series_1" WHERE "bbc_three_weekly_ranking"='N/A';

Question: What is the cable rank for the airdate of 10 december 2009?
SQL: SELECT "cable_rank" FROM "series_1" WHERE "airdate"='10 December 2009';

Question: How many entries are shown for viewers when the airdate was 26 november 2009?
SQL: SELECT COUNT("viewers") FROM "series_1" WHERE "airdate"='26 November 2009';