What is Average Height, when Weight is less than 93, when Spike is less than 336, and when Block is 305?
CREATE TABLE "volleyball_at_the_2004_summer_olympics_m" (
  "name" text,
  "date_of_birth" text,
  "height" real,
  "weight" real,
  "spike" real,
  "block" real
);
SELECT AVG("height") FROM "volleyball_at_the_2004_summer_olympics_m" WHERE "weight"<93 AND "spike"<336 AND "block"=305;