Table:
0
A
B
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D
E
1
Locomotive
Serial No
Entered service
Gauge
Livery
2
BL26
83-1010
March 1983
Standard
Pacific National blue & yellow
3
BL27
83-1011
August 1983
Standard
Pacific National blue & yellow
4
BL28
83-1012
September 1983
Standard
Pacific National blue & yellow
5
BL29
83-1013
October 1983
Broad
Pacific National blue & yellow
6
BL30
83-1014
December 1983
Standard
Pacific National blue & yellow
7
BL31
83-1015
November 1983
Standard
Pacific National blue & yellow
8
BL32
83-1016
February 1984
Broad
National Rail orange & grey
9
BL33
83-1017
April 1984
Standard
Pacific National blue & yellow
10
BL34
83-1018
June 1984
Broad
Pacific National blue & yellow
11
BL35
83-1019
July 1984
Standard
Pacific National blue & yellow

Questions and formulas:
Question: What is the livery of the locomotive with a serial number 83-1010?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="83-1010"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,B2:B11="83-1010"),5))
Level: medium
Question: What is the livery on the locomotive with a serial number 83-1011?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="83-1011"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,B2:B11="83-1011"),5))
Level: medium
Question: What is the locomotive with a standard gauge and a serial number of 83-1015?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="standard")*(B1="83-1015")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(D2:D11="standard")*(B2:B11="83-1015")),1))
Level: medium
Question: What is the date of entered service for the locomotive with a broad gauge and a serial no of 83-1018?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="broad")*(B1="83-1018")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(D2:D11="broad")*(B2:B11="83-1018")),3))
Level: medium