1. "Everlasting Love" has been recorded by Robert Knight, Carl Carlton, and Gloria Estefan, but what band hit Number One with it in January 1968?: Love Affair
2. Come on without, come on whithin, what band hit Number One with "The Mighty Quinn?": Manfred Mann
3. Who hit Number One with "The Legend of Xanadu" in March 1968?: Dave Dee, Dozy, Beaky, Mick & Tich
4. This Louis Armstrong song, later featured in the movie Good Morning Vietnam, was Number One for four weeks in May 1968.: "What A Wonderful World"
5. The Equals hit Number One with "Baby Come Back" in 1968; their lead singer would have several reggae-tinged hits in the 80s. Who was he?: Eddy Grant
6. "I am the god of Hell Fire, and I bring you...Fire," a Number One hit for who?: The Crazy World of Arthur Brown
7. This song, based on a Russian melody, was Number One for six weeks for Mary Hopkin and knocked "Hey Jude" out of the top spot.: "Those Were The Days"
8. "Lily the Pink" by The Scaffold was the 1968 Christmas Number One. Which Scaffold member had a famous brother?: Mike McGear, who was actually Mike McCartney
9. This group, not the Beatles, had a Number One hit with "Ob-La-Di, Ob-La-Da" in January 1969.: Marmalade
10. "Albatross" was a Number One instrumental for this group, which, with a few different members, would become one of the biggest groups of the 70s and 80s.: Fleetwood Mac
11. Rumor has it, someone told me this was Marvin Gaye's only Number One hit in the UK, from the spring of 1969.: "I Heard It Through The Grapevine"
12. What distinction does Desmond Dekker and the Aces' "Israelites" have?: It was the first reggae song to hit Number One
13. On the Beatles' "Get Back," someone else is credited - who?: Billy Preston
14. This Rolling Stones classic, which begins with the sound of a cowbell, was Number One for five weeks in the summer of 1969.: "Honky Tonk Women"
15. Could we possibly get through 1969 without mentioning the infamous "Je t'aime... moi non plus" by Serge Gainsbourg and Jane Birkin? What language was the song, uh, recorded in?: French
16. This American singer, not Dionne Warwick, had a Number One hit with "I'll Never Fall In Love Again" in October 1969.: Bobbie Gentry
17. This Rolf Harris war story song was the Christmas Number One for 1969: "Two Little Boys"

Bonus: Cliff Richards' "Congratulations," a Number One in April 1968, later popped up (with different lyrics) on what album by an ex-Beatle?: "All Things Must Pass" by George Harrison (it was recorded as "It's Johnny's Birthday")