CREATE TABLE "weekly_ratings" (
  "num" real,
  "episode" text,
  "air_date" text,
  "timeslot_est" text,
  "season" text,
  "rating" text,
  "share" real,
  "18_49" text,
  "viewers_m" text,
  "rank_num" text
);

Question: What is the rank number that aired october 26, 2007?
SQL: SELECT "rank_num" FROM "weekly_ratings" WHERE "air_date"='October 26, 2007';

Question: What is the number of rank with the viewership of 5.96 million?
SQL: SELECT COUNT("rank_num") FROM "weekly_ratings" WHERE "viewers_m"='5.96';

Question: What is the viewership on november 9, 2007?
SQL: SELECT "viewers_m" FROM "weekly_ratings" WHERE "air_date"='November 9, 2007';