Table:
0
A
B
C
D
E
1
Date
Score
Set 1
Set 2
Total
2
2 July
0–2
12:21
13:21
25:42
3
2 July
2–0
21:19
21:11
42:30
4
2 July
2–1
18:21
23:21
56:55
5
2 July
0–2
16:21
16:21
32:42
6
2 July
2–1
16:21
21:16
52:44
7
2 July
2–0
26:24
21:18
47:42
8
2 July
0–2
20:22
15:21
45:43
9
2 July
2–0
21:10
21:15
42:25
10
2 July
0–2
18:21
10:21
28:42
11
2 July
0–2
14:21
16:21
30:42
12
2 July
0–2
15:21
15:21
30:42
13
2 July
2–1
21:14
19:21
57:50
14
2 July
2–1
18:21
24:22
59:58
15
2 July
2–0
21:12
21:16
42:28
16
2 July
2–0
21:17
21:15
42:32
17
2 July
2–0
21:17
21:10
42:27

Questions and formulas:
Question: What is Score, when Total is "28:42"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="28:42"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,E2:E17="28:42"),2))
Level: medium
Question: What is Date, when Set 1 is "20:22"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="20:22"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,C2:C17="20:22"),1))
Level: medium
Question: What is Set 1, when Set 2 is "21:18"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="21:18"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,D2:D17="21:18"),3))
Level: medium
Question: What is Set 2, when Total is "52:44"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="52:44"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,E2:E17="52:44"),4))
Level: medium