Table:
0
A
B
C
D
E
F
1
Date
Ship
Type
Nationality
Tonnage GRT
Fate
2
5.12.1914
Charcas
Freighter
British
5,067
Sunk
3
11.12.1914
Jean
Sailing ship
French
2,207
Retained as collier Scuttled 31.12.14
4
12.12.1914
Kidalton
Sailing ship
British
1,784
Sunk
5
26.1.1915
Isabel Browne
Sailing ship
Russian
1,315
Sunk
6
27.1.1915
Pierre Lott
Sailing ship
French
2,196
Sunk
7
27.1.1915
William P Frye
Sailing ship
American
3,374
Sunk
8
28.1.1915
Jacobsen
Sailing ship
French
2,195
Sunk
9
12.2.1915
Invercoe
Sailing ship
British
1,421
Sunk
10
18.2.1915
Mary Ada Short
Sailing ship
British
3,605
Sunk
11
19.2.1915
Floride
Freighter
French
6,629
Sunk
12
20.2.1915
Willerby
Freighter
British
3,630
Sunk

Questions and formulas:
Question: what is the fate when the nationality is french and the ship is pierre lott?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(D1="french")*(B1="pierre lott")),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F12,(D2:D12="french")*(B2:B12="pierre lott")),6))
Level: medium
Question: what is the ship with the date of 28.1.1915?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="28.1.1915"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F12,A2:A12="28.1.1915"),2))
Level: medium
Question: what is the nationality when the ship is willerby?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="willerby"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F12,B2:B12="willerby"),4))
Level: medium
Question: what is the least tonnage grt when the nationality is british and the ship is kidalton?
Formula: MIN(FILTER(E1, (D1="british")*(B1="kidalton")))
Formula2: MIN(FILTER(E2:E12, (D2:D12="british")*(B2:B12="kidalton")))
Level: easy