CREATE TABLE "u_s_nielsen_ratings" (
  "num" real,
  "episode" text,
  "rating" text,
  "share" real,
  "rating_share_18_49" text,
  "viewers_millions" text,
  "rank_timeslot" real,
  "rank_night" real,
  "rank_week" text
);

Question: How many viewers (millions) were there for rank (week) 20?
SQL: SELECT COUNT("viewers_millions") FROM "u_s_nielsen_ratings" WHERE "rank_week"='20';

Question: What is the rank (timeslot) with the episode name "dangerous liaisons"?
SQL: SELECT "rank_timeslot" FROM "u_s_nielsen_ratings" WHERE "episode"='\"Dangerous Liaisons\"';

Question: What is the lowest rank (night) for having viewers (millions) 5.25?
SQL: SELECT MIN("rank_night") FROM "u_s_nielsen_ratings" WHERE "viewers_millions"='5.25';

Question: How many times was the episode named "conference call"?
SQL: SELECT COUNT("num") FROM "u_s_nielsen_ratings" WHERE "episode"='\"Conference Call\"';

Question: How many times was the rank (night) 11?
SQL: SELECT COUNT("viewers_millions") FROM "u_s_nielsen_ratings" WHERE "rank_night"=11;