Table:
0
A
B
C
D
E
F
1
Date
Name
Nationality
Casualties
Tonnage
Sunk by…
2
29 April 1943
McKeesport
United States
1
6,198
U-258
3
4 May 1943
Lorient
United Kingdom
46
4,737
U-125
4
4 May 1943
North Britain
United Kingdom
29+
4,635
U-707
5
5 May 1943
Harbury
United Kingdom
7
5,081
U-628
6
5 May 1943
West Maximus
United States
5
5,561
U-264
7
5 May 1943
Harperley
United Kingdom
11
4,586
U-264
8
5 May 1943
Bristol City
United Kingdom
15
2,864
U-358
9
5 May 1943
Wentworth
United Kingdom
5
5,212
U-358
10
5 May 1943
Dolius
United Kingdom
4
5,507
U-638
11
5 May 1943
West Makadet
United States
0
5,565
U-584
12
5 May 1943
Selvistan
United Kingdom
6
5,136
U-266
13
5 May 1943
Gharinda
United Kingdom
0
5,306
U-266
14
5 May 1943
Bonde
Norway
5
1,570
U-266

Questions and formulas:
Question: What were the casulaties on the McKeesport, which had a tonnage larger than 5,136?
Formula: LET(query1,LET(query1,FILTER(A1:F1,B1="mckeesport"),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)>5136))
Formula2: LET(query1,LET(query1,FILTER(A2:F14,B2:B14="mckeesport"),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)>5136))
Level: hard
Question: What were the casualties of the ship sunk by u-125?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="u-125"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,F2:F14="u-125"),4))
Level: medium
Question: What is the name of the ship sunk on 5 May 1943 from the United Kingdom sunk by an u-266 with 0 casualties?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(A1="5 may 1943")*(C1="united kingdom")*(F1="u-266")*(D1=0)),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,(A2:A14="5 may 1943")*(C2:C14="united kingdom")*(F2:F14="u-266")*(D2:D14=0)),2))
Level: medium
Question: What is the nationality of the ship with a tonnage larger than 5,507 sunk by an u-584?
Formula: LET(query1,LET(query1,FILTER(A1:F1,F1="u-584"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)>5507))
Formula2: LET(query1,LET(query1,FILTER(A2:F14,F2:F14="u-584"),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)>5507))
Level: hard