Table:
0
A
B
C
D
E
F
G
1
Vessel
Built
Max Speed
Length
Breadth
Flag
Propulsion
2
Gallion
2010
30 knots
20 m
6.5 m
United Kingdom
Prop
3
Gardian 1
2010
30 knots
20 m
6.5 m
United Kingdom
Prop
4
Gardian 2
2010
30 knots
20 m
6.5 m
United Kingdom
Prop
5
Gardian 7
2010
30 knots
20 m
6.5 m
United Kingdom
Prop
6
Gardian 9
2010
30 knots
20 m
6.5 m
United Kingdom
Prop
7
Marianarray
2011
26 knots
17 m
6 m
United Kingdom
Jet
8
Smeaton Array
2011
30 knots
20 m
6 m
United Kingdom
Controllable pitch propeller

Questions and formulas:
Question: What is the length when the propulsion is controllable pitch propeller?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,G1="Controllable pitch propeller"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G8,G2:G8="Controllable pitch propeller"),4))
Level: medium
Question: What is the max speed when the vessel is gallion?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1="Gallion"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G8,A2:A8="Gallion"),3))
Level: medium
Question: How many breadth entries are there when the vessel is marianarray?
Formula: ROWS(UNIQUE(FILTER(E1, A1="Marianarray")))
Formula2: ROWS(UNIQUE(FILTER(E2:E8, A2:A8="Marianarray")))
Level: medium
Question: What is the propulsion when the vessel is marianarray?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1="Marianarray"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G8,A2:A8="Marianarray"),7))
Level: medium
Question: How many breadth entries are there when propulsion is jet?
Formula: ROWS(UNIQUE(FILTER(E1, G1="Jet")))
Formula2: ROWS(UNIQUE(FILTER(E2:E8, G2:G8="Jet")))
Level: medium