Table:
0
A
B
C
D
E
F
1
Railway
Builder
Built
Wheels
Location
ObjectNumber
2
C&SLR
Mather & Platt / Beyer, Peacock
1890
Bo
LTMuseum
1923-301
3
Waterloo & City
Siemens Brothers & Co
1898
Bo
Shildon
1978-7003
4
NER
BTH
1904
Bo-Bo
Shildon
1975-7022
5
NSR
NSR / Thomas Bolton
1917
Bo
York
1978-7004
6
BR
BR Gorton
1951
Bo-Bo
York
1978-7005
7
BR
BR Doncaster
1958
Bo-Bo
Shildon
1978-7006
8
BR
North British
1960
Bo-Bo
Barrow Hill
1979-7001
9
BR
BREL Crewe
1974
Bo-Bo
York
2005-7698

Questions and formulas:
Question: Which Wheels has Built smaller than 1958, a Location of york, and a Railway of nsr?
Formula: LET(query1,LET(query1,FILTER(A1:F1,(E1="york")*(A1="nsr")),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,3)))),FILTER(query1,CHOOSECOLS(query1,2)<1958))
Formula2: LET(query1,LET(query1,FILTER(A2:F9,(E2:E9="york")*(A2:A9="nsr")),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,3)))),FILTER(query1,CHOOSECOLS(query1,2)<1958))
Level: hard
Question: Which Built has a Builder of brel crewe?
Formula: SUMIFS(C1,B1,"brel crewe")
Formula2: SUMIFS(C2:C9,B2:B9,"brel crewe")
Level: easy
Question: Which Railway has a Location of shildon, and an ObjectNumber of 1978-7006?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1="shildon")*(F1="1978-7006")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,(E2:E9="shildon")*(F2:F9="1978-7006")),1))
Level: medium
Question: Which Railway has a Location of shildon, and an ObjectNumber of 1975-7022?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1="shildon")*(F1="1975-7022")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,(E2:E9="shildon")*(F2:F9="1975-7022")),1))
Level: medium
Question: Which Location has an ObjectNumber of 2005-7698?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="2005-7698"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,F2:F9="2005-7698"),5))
Level: medium