Table:
0
A
B
C
D
E
1
Gauge
Railway
Works no.
Year
Builder
2
750 mm
C.F. du Congo
1744
1913
St. Leonard, Belgium
3
750 mm
C.F. du Congo
1901-1912
1920-21
St. Leonard, Belgium
4
750 mm
C.F. du Congo
2001-2009
1924-25
St. Leonard, Belgium
5
750 mm
C.F. du Congo
2040-2049
1925-26
St. Leonard, Belgium
6
2 ft 6 in
Buthidaung-Maungdaw Tramway, Burma
5702-5703
1913
Beyer, Peacock
7
1000 mm
SNCV, Belgium
2121
1929
St. Leonard, Belgium
8
1000 mm
SNCV, Belgium
2140
1930
St. Leonard, Belgium
9
4 ft 8½ in
Limburg Tramway, Holland
22063
1931
Hanomag & Henschel

Questions and formulas:
Question: In what Year is the Gauge 2 ft 6 in?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="2 ft 6 in"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,A2:A9="2 ft 6 in"),4))
Level: medium
Question: In what Year is the Works No. 2040-2049?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="2040-2049"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,C2:C9="2040-2049"),4))
Level: medium
Question: In what Year is the Works no. 2040-2049?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="2040-2049"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,C2:C9="2040-2049"),4))
Level: medium
Question: What is the Gauge of Builder Beyer, Peacock?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="beyer, peacock"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,E2:E9="beyer, peacock"),1))
Level: medium