Table:
0
A
B
C
D
E
1
Release format
Country
Label
Cat. No.
Release date
2
Vinyl
West Germany
Ariola
203 450-320
1981
3
Cassette
West Germany
Ariola
403 450-352
1981
4
Vinyl
Italy
Ariola
ARL 3155
1981
5
Vinyl
Greece
Ariola
6483 322
1981
6
Vinyl
Netherlands
Ariola
203 450
1981
7
Vinyl
Spain
Ariola
I-203450
1981
8
Vinyl
Yugoslavia
RTB
2220717
1981

Questions and formulas:
Question: How many release dates have a Country of west germany, and a Release format of vinyl?
Formula: ROWS(UNIQUE(FILTER(E1, (B1="west germany")*(A1="vinyl"))))
Formula2: ROWS(UNIQUE(FILTER(E2:E8, (B2:B8="west germany")*(A2:A8="vinyl"))))
Level: medium
Question: Which label is from Spain?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="spain"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,B2:B8="spain"),3))
Level: medium