For which song was the score 6.5 + 6.0 + 6.0 + 5.5 = 24.0?
CREATE TABLE "episode_8_2_march_2008" (
  "index" text,
  "name" text,
  "song" text,
  "group_song" text,
  "score" text
);
SELECT "song" FROM "episode_8_2_march_2008" WHERE "score"='6.5 + 6.0 + 6.0 + 5.5 = 24.0';