CREATE TABLE "table1_25640730_7" (
  "total" real,
  "num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "canadian_air_date" text,
  "uk_air_date" text,
  "canadian_viewers_millions" text
);

Question: What is the episode title for episode number 12?
SQL: SELECT "title" FROM "table1_25640730_7" WHERE "num"=12;

Question: If the UK air date is February 18, 2013, who was the episode written by?
SQL: SELECT "written_by" FROM "table1_25640730_7" WHERE "uk_air_date"='February 18, 2013';

Question: If the director is Yannick Bisson, what was the Canadian amount of viewers?
SQL: SELECT COUNT("canadian_viewers_millions") FROM "table1_25640730_7" WHERE "directed_by"='Yannick Bisson';