Question: What was the survivor count for the episode directed by Gwyneth Horder-Payton?
SQL: SELECT "Survivor count" FROM "1-21304131-2" WHERE "Directed by" = 'Gwyneth Horder-Payton';

Question: When did series number 65 originally air?
SQL: SELECT "Original air date" FROM "1-21304131-2" WHERE "No. in series" = 65.0;