CREATE TABLE "house_players" (
  "task_no" real,
  "day_announced" text,
  "options" text,
  "viewers_selection" text,
  "result" text
);

Question: What were the options that were completed before the 4 th task that had viewers selecting nan?
SQL: SELECT "options" FROM "house_players" WHERE "result"='completed' AND "task_no"<4 AND "viewers_selection"='nan';

Question: when was it announced that the viewers selected robi out of alex, ejay, nan, robi?
SQL: SELECT "day_announced" FROM "house_players" WHERE "viewers_selection"='robi' AND "options"='alex, ejay, nan, robi';

Question: What day was it when viewers selected ejay?
SQL: SELECT "day_announced" FROM "house_players" WHERE "viewers_selection"='ejay';