Table:
0
A
B
C
D
E
1
Date
Ship
Nationality
Tonnage
Fate
2
29 June 1941
George J. Goulandris
Greece
4,345
Sunk
3
29 June 1941
Kalypso Vergotti
Greece
5,686
Sunk
4
30 June 1941
Saint Aslem
United Kingdom
5,614
Sunk
5
19 July 1941
Holmside
United Kingdom
3,433
Sunk
6
26 July 1941
I. C. White
Panama
7,052
Sunk
7
18 January 1942
Allan Jackson
USA
6,635
Sunk
8
19 January 1942
Lady Hawkins
Canada
7,988
Sunk
9
22 January 1942
Olympic
Panama
5,335
Sunk
10
24 January 1942
Empire Gem
United Kingdom
8,139
Sunk
11
24 January 1942
Venore
USA
8,017
Sunk
12
14 April 1942
Korthion
Greece
2,116
Sunk
13
16 April 1942
Amsterdam
Netherlands
7,329
Sunk
14
17 April 1942
Heinrich von Riedemann
Panama
11,020
Sunk
15
26 April 1942
Alcoa Partner
USA
5,513
Sunk
16
29 April 1942
Harry G. Siedel
Panama
10,354
Sunk
17
2 May 1942
Sandar
Norway
7,624
Sunk
18
3 May 1942
Geo. W. McNight
United Kingdom
12,502
Damaged

Questions and formulas:
Question: What is the date of the ship with a tonnage greater than 8,017?
Formula: LET(query1,SUMMARIZE(A1,SUMX(D1)),FILTER(query1,CHOOSECOLS(query1,2)>8017))
Formula2: LET(query1,SUMMARIZE(A2:A18,SUMX(D2:D18)),FILTER(query1,CHOOSECOLS(query1,2)>8017))
Level: hard
Question: What ship has a norway nationality?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="norway"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,C2:C18="norway"),2))
Level: medium
Question: What is the fate of the ship on 26 April 1942?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="26 april 1942"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,A2:A18="26 april 1942"),5))
Level: medium
Question: What is the highest tonnage of the ship from norway?
Formula: MAXIFS(D1,C1,"norway")
Formula2: MAXIFS(D2:D18,C2:C18,"norway")
Level: easy