Table:
0
A
B
C
D
E
F
1
City
Province/Region
Country
IATA
ICAO
Airport
2
Brisbane
—
Australia
BNE
YBBN
Brisbane Airport
3
Calgary
—
Canada
YYC
CYYC
Calgary International Airport
4
Denpasar
—
Indonesia
DPS
WADD
Ngurah Rai International Airport
5
Guam
—
Guam
GUM
PGUM
Antonio B. Won Pat International Airport
6
Kuala Lumpur
—
Malaysia
KUL
WMKK
Kuala Lumpur International Airport
7
Milan
—
Italy
MXP
LIMC
Malpensa Airport
8
Moscow
—
Russia
SVO
UUEE
Sheremetyevo International Airport
9
Perth
—
Australia
PER
YPPH
Perth Airport
10
Rome
—
Italy
FCO
LIRF
Leonardo da Vinci–Fiumicino Airport
11
Saipan
—
Northern Mariana Islands
SPN
PGSN
Saipan International Airport
12
Stockholm
—
Sweden
ARN
ESSA
Stockholm Arlanda Airport
13
Sydney
—
Australia
SYD
YSSY
Sydney Airport
14
Tianjin
—
China
TSN
ZBTJ
Tianjin Binhai International Airport
15
Vienna
—
Austria
VIE
LOWW
Vienna International Airport

Questions and formulas:
Question: What is the IATA of Guam?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="guam"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,A2:A15="guam"),4))
Level: medium
Question: VIE is the IATA for which city?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="vie"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,D2:D15="vie"),6))
Level: medium
Question: Which city's ICAO is WADD?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="wadd"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,E2:E15="wadd"),1))
Level: medium
Question: PER is the IATA for which city?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="per"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,D2:D15="per"),1))
Level: medium
Question: Which city's IATA is KUL?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="kul"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,D2:D15="kul"),1))
Level: medium
Question: The Brisbane airport is located in which country?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="brisbane airport"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,F2:F15="brisbane airport"),3))
Level: medium