Table:
0
A
B
C
D
E
F
G
1
Warship
tons ( L.ton )
Horse- power
Speed ( Knots )
Armour (Inch)
Main Artillery
Built Year
2
Cochrane
3560
2000
9-12,8
up to 9
6x9 Inch
1874
3
Blanco Encalada
3560
3000
9-12,8
up to 9
6x9 Inch
1874
4
Huascar
1130
1200
10-11
4½
2x300-pounders
1865
5
Independencia
2004
1500
12-13
4½
2x150-pounders
1865
6
Manco Cápac
1034
320
6
10
2x500-pounders
1864

Questions and formulas:
Question: What's Blanco Encalada's main artillery?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1="Blanco Encalada"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G6,A2:A6="Blanco Encalada"),6))
Level: medium
Question: How many different horse-powers does the Cochrane have?
Formula: ROWS(UNIQUE(FILTER(C1, A1="Cochrane")))
Formula2: ROWS(UNIQUE(FILTER(C2:C6, A2:A6="Cochrane")))
Level: medium
Question: What warship has horse-power of 1500?
Formula: LET(query1,SUMMARIZE(A1,SUMX(C1)),FILTER(query1,CHOOSECOLS(query1,2)=1500))
Formula2: LET(query1,SUMMARIZE(A2:A6,SUMX(C2:C6)),FILTER(query1,CHOOSECOLS(query1,2)=1500))
Level: hard
Question: How much does the Independencia weight?
Formula: MINIFS(B1,A1,"Independencia")
Formula2: MINIFS(B2:B6,A2:A6,"Independencia")
Level: easy
Question: In how many different years was the warship that weights 1130 tons built?
Formula: ROWS(UNIQUE(FILTER(G1, B1=1130)))
Formula2: ROWS(UNIQUE(FILTER(G2:G6, B2:B6=1130)))
Level: medium