Which song released on both the album "John Lennon/Plastic Ono Band" and a Mexican EP was 1:41 shorter as a single?
My Mummy's Dead:  It was also released on a Mexican EP that also contained "Mother", "Isolation" and "Look at Me." Mother (John Lennon song): "Mother" is a song by English musician John Lennon, first released on his 1970 album "John Lennon/Plastic Ono Band".
i don't know