Table:
0
A
B
C
D
E
1
City
Operator
Type designation
Number of vehicles
Width
2
Bonn , Germany
SWB
K5000
15
2.65 m
3
Bursa , Turkey
Bursaray
U5-2010 Bursa
30
2.65 m
4
Cologne , Germany
KVB
K5000
59
2.65 m
5
Cologne , Germany
KVB
K5200
15
2.65 m
6
Frankfurt am Main , Germany
VgF
U5-25 (Bi-directional)
54
2.65 m
7
Frankfurt am Main , Germany
VgF
U5-50 (Uni-directional)
92
2.65 m
8
İzmir , Turkey
İzmir Metro
MD
30
2.65 m
9
İzmir , Turkey
İzmir Metro
M
15
2.65 m
10
Greater Manchester , England
Metrolink
M5000
94
2.65 m
11
Rotterdam , Netherlands
RET
MG2/1, SG2/1
81
2.664 m
12
Rotterdam , Netherlands
RET
RSG3
64
2.664 m

Questions and formulas:
Question: Which Operator has a Width of 2.65 m, and a Type designation of m5000?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="2.65 m")*(C1="m5000")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,(E2:E12="2.65 m")*(C2:C12="m5000")),2))
Level: medium
Question: Which Width has a Number of vehicles larger than 15, and a Type designation of k5000?
Formula: LET(query1,LET(query1,FILTER(A1:E1,C1="k5000"),SUMMARIZE(CHOOSECOLS(query1,5),SUMX(CHOOSECOLS(query1,4)))),FILTER(query1,CHOOSECOLS(query1,2)>15))
Formula2: LET(query1,LET(query1,FILTER(A2:E12,C2:C12="k5000"),SUMMARIZE(CHOOSECOLS(query1,5),SUMX(CHOOSECOLS(query1,4)))),FILTER(query1,CHOOSECOLS(query1,2)>15))
Level: hard
Question: Which Number of vehicles has a Type designation of u5-25 (bi-directional)?
Formula: SUMIFS(D1,C1,"u5-25 (bi-directional)")
Formula2: SUMIFS(D2:D12,C2:C12,"u5-25 (bi-directional)")
Level: easy