Table:
0
A
B
C
D
E
1
Built
Ship
Operator
Tonnage
Flag
2
2006
Costa Concordia
Costa Cruises
GT
Italy
3
2007
Costa Serena
Costa Cruises
GT
Italy
4
2008
Carnival Splendor
Carnival Cruise Lines
GT
Panama
5
2009
Costa Pacifica
Costa Cruises
GT
Italy
6
2011
Costa Favolosa
Costa Cruises
GT
Italy
7
2012
Costa Fascinosa
Costa Cruises
GT
Italy

Questions and formulas:
Question: What ship was built in 2012?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1=2012),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7=2012),2))
Level: medium
Question: What ship was built in 2012?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1=2012),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7=2012),2))
Level: medium
Question: What is the total of built with a flag of panama?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="panama"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,E2:E7="panama"),1))
Level: medium
Question: What tonnage was built in 2007?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1=2007),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7=2007),4))
Level: medium
Question: What operator has a ship costa pacifica?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="costa pacifica"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="costa pacifica"),3))
Level: medium