CREATE TABLE "table1_24961421_1" (
  "series_num" real,
  "season_num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "u_s_viewers_millions" text
);

Question: What number in the series was episode 7 in the season?
SQL: SELECT "series_num" FROM "table1_24961421_1" WHERE "season_num"=7;

Question: Who wrote "Voir Dire"?
SQL: SELECT "written_by" FROM "table1_24961421_1" WHERE "title"='\"Voir Dire\"';

Question: When was "Rewind" originally aired?
SQL: SELECT "original_air_date" FROM "table1_24961421_1" WHERE "title"='\"Rewind\"';

Question: How many episodes had the title "Rise and Fall"?
SQL: SELECT COUNT("season_num") FROM "table1_24961421_1" WHERE "title"='\"Rise and Fall\"';

Question: Who wrote the episode that had 12.15 million viewers?
SQL: SELECT "written_by" FROM "table1_24961421_1" WHERE "u_s_viewers_millions"='12.15';

Question: What number in the season was the episode with 12.23 million viewers?
SQL: SELECT "season_num" FROM "table1_24961421_1" WHERE "u_s_viewers_millions"='12.23';