Table:
0
A
B
C
D
E
1
Year of Issue
Weight
Diameter
Thickness
Edge
2
1976
3.24grams
19.05mm
1.42mm
Plain
3
1977
1.87grams
16.0mm
1.35mm
Plain
4
1979
2.80grams
19.05mm
1.38mm
Plain
5
1979
2.70grams
19.20mm
1.30mm
Plain
6
1980
2.3grams
18.7mm
1.3mm
Plain
7
1981
2.6grams
18.95mm
1.5mm
Plain
8
1981
2.5grams
19.10mm
1.45mm
Plain

Questions and formulas:
Question: Which Diameter has a Year of Issue of 1977?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1=1977),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8=1977),3))
Level: medium
Question: Which Year of Issue has a Thickness of 1.42mm?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="1.42mm"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,D2:D8="1.42mm"),1))
Level: medium
Question: Which Diameter has a Thickness of 1.3mm?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="1.3mm"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,D2:D8="1.3mm"),3))
Level: medium