What is Season, when # Of Episodes is "10", and when Date Released is "1 April 2010"?
CREATE TABLE "dvd_releases" (
  "season" text,
  "date_released" text,
  "num_of_episodes" real,
  "num_of_discs" real,
  "special_features" text
);
SELECT "season" FROM "dvd_releases" WHERE "num_of_episodes"=10 AND "date_released"='1 april 2010';