CREATE TABLE "series_1" (
  "num" real,
  "airdate" text,
  "no_of_couples" real,
  "first_couple" text,
  "second_couple" text,
  "third_couple" text,
  "fourth_couple" text,
  "viewers_millions" text,
  "itv1_weekly_ranking" real
);

Question: Who was the second couple for the episode having an ITV1 ranking of 29?
SQL: SELECT "second_couple" FROM "series_1" WHERE "itv1_weekly_ranking"=29;

Question: What is the maximum ITV1 weekly ranking?
SQL: SELECT MAX("itv1_weekly_ranking") FROM "series_1";

Question: What was the number of viewers for the episode having a fourth couple of Tony and Jamie?
SQL: SELECT "viewers_millions" FROM "series_1" WHERE "fourth_couple"='Tony and Jamie';

Question: Who was the first couple in the episode having a fourth couple of Sammy and Nat?
SQL: SELECT "first_couple" FROM "series_1" WHERE "fourth_couple"='Sammy and Nat';

Question: What is the minimum ITV1 ranking for the episode having viewership of 5.42 million?
SQL: SELECT MIN("itv1_weekly_ranking") FROM "series_1" WHERE "viewers_millions"='5.42';