CREATE TABLE "ratings" (
  "episode_number" text,
  "episode" text,
  "original_airdate" text,
  "rating" text,
  "share" text,
  "rating_share_18_49" text,
  "viewers_millions" text,
  "weekly_rank" real
);

Question: What number episode was Week 4, Part 1? 
SQL: SELECT "episode_number" FROM "ratings" WHERE "episode"='Week 4, Part 1';

Question: For what episode was the rating/share for 18-49 at 2.8/8
SQL: SELECT "episode" FROM "ratings" WHERE "rating_share_18_49"='2.8/8';

Question: What number episode was Week 4, Part 2?
SQL: SELECT "episode_number" FROM "ratings" WHERE "episode"='Week 4, Part 2';

Question: How many viewers in millions watched the episode with the number 10.18?
SQL: SELECT "viewers_millions" FROM "ratings" WHERE "episode_number"='10.18';

Question: What is the rating/share for 18-49 for Week 6, Part 1?
SQL: SELECT "rating_share_18_49" FROM "ratings" WHERE "episode"='Week 6, Part 1';

Question: What is the weekly rank of the episode with a 14 share whose original airdate was April 20, 2010? 
SQL: SELECT "weekly_rank" FROM "ratings" WHERE "share"='14' AND "original_airdate"='April 20, 2010';