It's actually a fake rumour that Lady Gaga Ft Rihanna made "Silly Boy", The song is actually performed by a singer called Eva Simons. Check her out on Youtube :D Peace.
The Revolver album 'only' had 14 songs (11 in the US). The Beatles wrote and performed many more than 14 songs, so many Beatles' songs did not appear on their album 'Revolver'! However, if you want...
The songs on the album "Revolver" are in order and listed below. Side 1 1. Taxman, 2. Eleanor Rigby, 3. I'm Only Sleeping, 4. Love You To, 5. Here, There Everywhere, 6. Yellow Submarine, 7. She Said...