What is the losses average when the against is greater than 1255 and wins is 0 and the draws less than 0?
CREATE TABLE "2004_ladder" (
  "ballarat_fl" text,
  "wins" real,
  "byes" real,
  "losses" real,
  "draws" real,
  "against" real
);
SELECT AVG("losses") FROM "2004_ladder" WHERE "against">1255 AND "wins"=0 AND "draws"<0;