Table:
0
A
B
C
D
E
1
Index
Name
Song
Group Song
Score
2
M1
Isaac 张富泷
爱爱爱
杀手
6.0 + 6.0 + 6.0 + 6.5 = 24.5
3
M2
Eddie 赖勇霖
不屑纪念
杀手
7.0 + 7.0 + 7.5 + 6.5 = 28.0
4
M3
Jac 林伟明
想太多
对手
6.5 + 6.5 + 7.0 + 5.5 = 25.5
5
M4
Cliff 郑至围
眼底星空
对手
7.5 + 6.5 + 7.5 + 6.5 = 28.0
6
M5
Alvin 马铭泉
两败俱伤
对手
6.0 + 5.5 + 6.5 + 5.5 = 23.5
7
M6
Kevin 邓凯文
懂了
对手
6.5 + 6.0 + 6.0 + 5.5 = 24.0

Questions and formulas:
Question: What song had an index of m6?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="m6"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="m6"),3))
Level: medium
Question: For which song was the score 6.5 + 6.0 + 6.0 + 5.5 = 24.0?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="6.5 + 6.0 + 6.0 + 5.5 = 24.0"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,E2:E7="6.5 + 6.0 + 6.0 + 5.5 = 24.0"),3))
Level: medium