CREATE TABLE "season_10_2005" (
  "season_num" real,
  "series_num" real,
  "episode_title" text,
  "original_air_date" text,
  "nick_prod_num" real
);

Question: How many  season # where episode title is " Avril Lavigne "? 
SQL: SELECT "season_num" FROM "season_10_2005" WHERE "episode_title"='\" Avril Lavigne \"';