CREATE TABLE "table1_2345558_1" (
  "num" real,
  "title" text,
  "director" text,
  "writer_s" text,
  "original_air_date" text,
  "production_code" text,
  "u_s_viewers_millions" text
);

Question: What is the number of the episode seen by 1.370 million people in the US?
SQL: SELECT MAX("num") FROM "table1_2345558_1" WHERE "u_s_viewers_millions"='1.370';

Question: What's the number of the episode directed by Whitney Ransick?
SQL: SELECT "num" FROM "table1_2345558_1" WHERE "director"='Whitney Ransick';

Question: Who directed the episode written by Jason Yoshimura?
SQL: SELECT "director" FROM "table1_2345558_1" WHERE "writer_s"='Jason Yoshimura';

Question: Who directed the episode titled "Risky Business"?
SQL: SELECT "director" FROM "table1_2345558_1" WHERE "title"='\"Risky Business\"';