What is the name of episode number 12 of the season?
CREATE TABLE "table1_27832075_2" (
  "series_num" real,
  "episode_num" text,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "u_s_viewers_millions" text
);
SELECT "title" FROM "table1_27832075_2" WHERE "episode_num"='12';