Table:
0
A
B
C
D
E
1
Rank
Airline
Country
Destination number
Remarks
2
1
Cubana de Aviación
Cuba
35
Operational since 1929
3
2
LIAT
Antigua and Barbuda
21
Second Largest Airline in the Caribbean
4
3
Caribbean Airlines
Trinidad and Tobago
19
Largest Airline in the Caribbean
5
4
InselAir
Curacao
16
Operational since 2006
6
5
Dutch Antilles Express
Curacao
9
More destination to come
7
6
Air Jamaica
Trinidad and Tobago
7
Parent Company is Caribbean Airlines
8
7
Tiara Air
Aruba
6
Aruba's national airline

Questions and formulas:
Question: What were the remarks for Dutch Antilles Express?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="dutch antilles express"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,B2:B8="dutch antilles express"),5))
Level: medium
Question: What were the remarks for a destination under 19 and rank less than 5?
Formula: LET(query1,SUMMARIZE(E1,SUMX(D1),SUMX(A1)),FILTER(query1,(CHOOSECOLS(query1,2)<19)*(CHOOSECOLS(query1,3)<5)))
Formula2: LET(query1,SUMMARIZE(E2:E8,SUMX(D2:D8),SUMX(A2:A8)),FILTER(query1,(CHOOSECOLS(query1,2)<19)*(CHOOSECOLS(query1,3)<5)))
Level: hard