CREATE TABLE table_69949 ("Title" TEXT, "Entered chart  ( UK ) " TEXT, "Peak position  ( UK ) " FLOAT, "Weeks on Chart  ( UK ) " FLOAT, "Sent to CBeebies Album" TEXT)

Which single was on the Charts for 23 weeks ?
SELECT "Title" FROM table_69949 WHERE "Weeks on Chart (UK)" = '23'
SELECT "Title" FROM "table_69949" WHERE "Weeks on Chart (UK)" = '23'