Table:
0
A
B
C
D
E
1
City
Country
IATA
ICAO
Airport
2
Ampara
Sri Lanka
GOY
VCCG
Ampara Airport
3
Anuradhapura
Sri Lanka
ACJ
VCCA
Anuradhapura Airport
4
Batticaloa
Sri Lanka
BTC
VCCB
Batticaloa Airport
5
Colombo
Sri Lanka
RML
VCCC
Ratmalana Airport [H]
6
Hambantota
Sri Lanka
HRI
VCRI
Mattala Rajapaksa International Airport ‡
7
Jaffna
Sri Lanka
JAF
VCCJ
Jaffna Airport
8
Killinochchi
Sri Lanka
TBA
TBA
Iranamadu Airport
9
Malé [begins IN 2013]
Maldives
MLE
VRMM
Ibrahim Nasir International Airport [T]
10
Trincomalee
Sri Lanka
TRR
VCCT
China Bay Airport
11
Vavuniya
Sri Lanka
TBA
VCCV
Vavuniya Airport
12
Hambantota
Sri Lanka
WRZ
VCCW
Weerawila Airport
13
Koggala
Sri Lanka
KCT
VCCK
Koggala Airport

Questions and formulas:
Question: For an IATA of MLE, what is the ICAO?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="mle"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E13,C2:C13="mle"),4))
Level: medium
Question: For an ICAO of VCCT, what is the IATA?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="vcct"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E13,D2:D13="vcct"),3))
Level: medium
Question: Which city has an ICAO of VCCJ?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="vccj"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E13,D2:D13="vccj"),1))
Level: medium
Question: Which ICAO is found in Vavuniya?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="vavuniya"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E13,A2:A13="vavuniya"),4))
Level: medium
Question: Which country has Weerawila Airport?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="weerawila airport"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E13,E2:E13="weerawila airport"),2))
Level: medium