Table:
0
A
B
C
D
E
1
City
Country
IATA
ICAO
Airport
2
Aalborg
Denmark
AAL
EKYT
Aalborg Airport
3
Aarhus
Denmark
AAR
EKAH
Aarhus Airport
4
Aberdeen
United Kingdom
ABZ
EGPD
Aberdeen Airport
5
Barcelona
Spain
BCN
LEBL
Barcelona Airport
6
Bergen
Norway
BGO
ENBR
Bergen Airport
7
Billund
Denmark
BLL
EKBI
Billund Airport
8
Copenhagen
Denmark
CPH
EKCP
Copenhagen Airport
9
Vágar
Faroe Islands
FAE
EKVG
Vágar Airport
10
London
United Kingdom
LGW
EGKK
Gatwick Airport
11
London
United Kingdom
STN
EGSS
London Stansted Airport
12
Narsarsuaq
Greenland
UAK
BGBW
Narsarsuaq Airport
13
Oslo
Norway
OSL
ENGM
Oslo Airport, Gardermoen
14
Reykjavík
Iceland
RKV
BIRK
Reykjavík Airport
15
Stavanger
Norway
SVG
ENZV
Stavanger Airport
16
Stockholm
Sweden
ARN
ESSA
Stockholm-Arlanda Airport
17
Sumburgh
United Kingdom
LSI
EGPB
Sumburgh Airport

Questions and formulas:
Question: What airport has an IATA of ARN?
Formula: FILTER(E1,C1="arn")
Formula2: FILTER(E2:E17,C2:C17="arn")
Level: easy
Question: What country has an ICAO of ENZV?
Formula: FILTER(B1,D1="enzv")
Formula2: FILTER(B2:B17,D2:D17="enzv")
Level: easy
Question: What airport has an ICAP of BGBW?
Formula: FILTER(E1,D1="bgbw")
Formula2: FILTER(E2:E17,D2:D17="bgbw")
Level: easy
Question: What airport has an ICAO of Birk?
Formula: FILTER(E1,D1="birk")
Formula2: FILTER(E2:E17,D2:D17="birk")
Level: easy
Question: What is the ICAO for Denmark, and the IATA is bll?
Formula: FILTER(D1,(B1="denmark")*(C1="bll"))
Formula2: FILTER(D2:D17,(B2:B17="denmark")*(C2:C17="bll"))
Level: easy