There is a thematic flow to this round. It helps to say the questions out loud, hearing the rhythm often makes the answer obvious.
1. How much is one plus one?
2. How much is one plus one plus one?
3. What feeling should you hide away?
4. Will you hide your feelings?
5. What year do I have feeling will be a good one?
6. What year have I been feeling it since?
7. What year did Justine hang down with the freaks and ghouls??
8. No one alive from this year will ever do.
9. What year will I kick it like?
10. What year will I party like tonight? (easy one)
11. What year do we assume control?
1. How much is one plus one?
One and one don’t make two, one and one make one (The Who, Bargain)
I don’t know much about algebra, but I know one plus one equals two (Beyone, 1+1)
One plus one, is one. I know it’s crazy but it’s true (Ace Frehley, One Plus One)
Probably others also…
2. How much is one plus one plus one?
One and one one is three. (Beatles, Come Together)
3. What feeling should you hide away?
Your love. Hey, you’ve got to hide your love away (Beatles)
4. Will you hide your feelings?
No, you won’t because you can’t. I’ve got a feeling, a feeling I can’t hide (Beatles, I’ve Got A Feeling)
5. What year do I have feeling will be a good one?
Got a feeling ’21 is gonna be a good year (The Who, 1921)
6. What year have I been feeling it since?
I been feeling it since 1966 (Portugal. the Man, Feel it Still)
7. What year did Justine hang down with the freaks and ghouls??
1979. Justine never knew the rules, that’s why it happened (Smashing Pumpkins, 1979)
8. No one alive from this year will ever do.
Oh no one left alive in 1985, will ever do (Paul McCartney, Nineteen Hundred and Eighty Five)
9. What year will I kick it like?
Let me kick it like it’s 1986 now (Portugal. the Man, Feel it Still)
10. What year will I party like tonight? (easy one)
1999 (Prince, 1999)
11. What year do we assume control?
Not stated explicitly in the lyrics, but presumably in 2112 (Rush, 2112)
1) One
3) Your love
7) 1979