1. What Beatles album was at the top of the U.S. charts in January 1968?: Magical Mystery Tour
2. This Beatles-related enterprise opened its offices at 95 Wigmore Street in London in January 1968.: Apple Corps.
3. What country did all the Beatles visit in February 1968 for an extended period of time?: India
4. And which Beatle left that country first, two weeks later?: Ringo
5. What Beatles album won the Grammy Award for Album of the Year and Best Album Cover for 1967 in February 1968?: Sergeant Pepper's Lonely Hearts Club Band
6. This non-album Beatles hit that featured the piano was a Top Five hit in April 1968.: "Lady Madonna"
7. Which two Beatles appeared on the Tonight Show in May 1968?: John and Paul
8. Who did Paul McCartney meet in June 1968?: Linda Eastman
9. Did the Beatles provide their own voices for their animated counterparts in the 1968 film "Yellow Submarine?": No, they were provided by actors
10. What is the name of the Nowhere Man from "Yellow Submarine?": Jeremy Hilary Boob, Ph.D
11. And what were the villains in that film called?: Blue Meanies
12. Which Beatle briefly quit the band during a recording session in August 1968?: Ringo
13. What classic seven-minute Beatles song topped the U.S. charts for nine weeks beginning in September 1968?: "Hey Jude"
14. The first authorized biography of the Beatles was published in September 1968. Who wrote it?: Hunter Davies
15. What world leader was mentioned in the lyrics of "Revolution?": Chairman Mao
16. The Beatles released a double album in December 1968. What is the actual title of the album?: The Beatles
17. What is the name of the strange experimental sound collage from that album?: "Revolution 9"

Bonus: John Lennon and Yoko Ono were guests on a TV special taped in December 1968 that was not released until the mid-90s. What was the name of the TV special?: The Rolling Stones' Rock and Roll Circus