how many have the number 8
CREATE TABLE "table1_10470082_5" (
  "no" real,
  "num" real,
  "title" text,
  "director" text,
  "writer" text,
  "us_air_date" text,
  "storyteller" text,
  "villains" text
);
SELECT COUNT("no") FROM "table1_10470082_5" WHERE "num"=8;