Table:
0
A
B
C
D
E
1
Date
Ship
Nationality
Tonnage
Fate
2
16 May 1941
Llangibby Castle
Great Britain
11,951
Damaged
3
13 April 1942
Empire Progress
Great Britain
5,249
Sunk
4
30 April 1942
Ashkhabad
Soviet Union
5,284
Sunk
5
2 May 1942
USS Cythera
USA
602
Sunk
6
2 November 1942
Dalcroy
Great Britain
4,558
Sunk
7
2 November 1942
Empire Antelope
Great Britain
4,945
Sunk
8
2 November 1942
Empire Leopard
Great Britain
5,676
Sunk
9
2 November 1942
Empire Sunrise
Great Britain
7,459
Damaged
10
2 November 1942
Rinos
Greece
4,649
Sunk
11
7 February 1942
Afrika
Great Britain
8,597
Sunk
12
7 February 1942
Daghild
Norway
9,272
Damaged
13
7 February 1942
Henry R. Mallory
USA
6,063
Sunk
14
7 February 1942
Kalliopi
Greece
4,695
Sunk
15
7 February 1942
Robert E. Hopkins
Great Britain
6,625
Sunk
16
7 February 1942
Toward
Great Britain
1,571
Sunk
17
8 February 1942
Newton Ash
Great Britain
1,571
Sunk
18
11 May 1943
Antigone
Great Britain
4,545
Sunk
19
11 May 1943
Grado
Norway
3,082
Sunk

Questions and formulas:
Question: What is the date for the ship Afrika, with nationality Great Britain?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(C1="great britain")*(B1="afrika")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,(C2:C19="great britain")*(B2:B19="afrika")),1))
Level: medium
Question: What is the highest tonnage for a ship from Great Britain named Newton Ash?
Formula: MAX(FILTER(D1, (C1="great britain")*(B1="newton ash")))
Formula2: MAX(FILTER(D2:D19, (C2:C19="great britain")*(B2:B19="newton ash")))
Level: easy
Question: What was the nationality of the ship named Toward?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="toward"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,B2:B19="toward"),3))
Level: medium
Question: What was the nationality of the sunk ship named Rinos?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="sunk")*(B1="rinos")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,(E2:E19="sunk")*(B2:B19="rinos")),3))
Level: medium