CREATE TABLE "table1_21304131_2" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "survivor_count" real
);

Question: What was the survivor count for the episode directed by Gwyneth Horder-Payton?
SQL: SELECT "survivor_count" FROM "table1_21304131_2" WHERE "directed_by"='Gwyneth Horder-Payton';

Question: When did series number 65 originally air?
SQL: SELECT "original_air_date" FROM "table1_21304131_2" WHERE "no_in_series"=65;