CREATE TABLE "table1_26733129_1" (
  "episode_number" real,
  "air_date" text,
  "guests" text,
  "three_darts_challenge" text,
  "musical_performance" text
);

Question: How many episodes are there for the three darts challenge with Sharon Osbourne?
SQL: SELECT MAX("episode_number") FROM "table1_26733129_1" WHERE "three_darts_challenge"='Sharon Osbourne';

Question: What musical performances aired on 5 April 2010?
SQL: SELECT "musical_performance" FROM "table1_26733129_1" WHERE "air_date"='5 April 2010';

Question: What were the guests that aired on 7 June 2010?
SQL: SELECT "guests" FROM "table1_26733129_1" WHERE "air_date"='7 June 2010';

Question: Who was in the three darts challenge that aired on 10 may 2010?
SQL: SELECT "three_darts_challenge" FROM "table1_26733129_1" WHERE "air_date"='10 May 2010';