Table:
0
A
B
C
D
E
1
City
Country
IATA
ICAO
Airport
2
Seoul
South Korea
ICN
RKSI
Incheon International Airport
3
Seoul
South Korea
GMP
RKSS
Gimpo International Airport
4
Jeju
South Korea
CJU
RKPC
Jeju International Airport
5
Siem Reap
Cambodia
REP
VDSR
Siem Reap International Airport
6
Sapporo
Japan
CTS
RJCC
New Chitose Airport
7
Nagasaki
Japan
NGS
RJFU
Nagasaki Airport
8
Okinawa
Japan
OKA
ROAH
Naha Airport
9
Fuzhou
China
FOC
ZSFZ
Fuzhou Changle International Airport
10
Shanghai
China
PVG
ZSPD
Shanghai Pudong International Airport
11
Hong Kong
Hong Kong
HKG
VHHH
Hong Kong International Airport
12
Macao
Macau
MFM
VMMC
Macao International Airport
13
Guam
Guam
GUM
PGUM
Antonio B. Won Pat International Airport
14
Taipei
Taiwan
TPE
RCTP
Taoyuan International Airport
15
Bangkok
Thailand
BKK
VTBS
Suvarnabhumi Airport
16
Chiang Mai
Thailand
CNX
VTCC
Chiang Mai International Airport
17
Vientiane
Laos
VTE
VLVT
Wattay International Airport
18
Cebu
Philippines
CEB
RPVM
Mactan Cebu International Airport
19
Clark
Philippines
CRK
RPLC
Clark International Airport

Questions and formulas:
Question: What shows for IATA for the City of sapporo?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="sapporo"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,A2:A19="sapporo"),3))
Level: medium
Question: What is the ICAO when the IATA shows cts?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="cts"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,C2:C19="cts"),4))
Level: medium
Question: What is the Country when the IATA shows cju?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="cju"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,C2:C19="cju"),2))
Level: medium
Question: What is the ICAO when the IATA shows mfm?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="mfm"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,C2:C19="mfm"),4))
Level: medium
Question: What is the ICAO for Hong Kong?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="hong kong"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,B2:B19="hong kong"),4))
Level: medium
Question: What is the Airport when the ICAO shows rpvm?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="rpvm"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,D2:D19="rpvm"),5))
Level: medium