Table:
0
A
B
C
D
E
1
Name
Pennant number
Ordered
Builder
Commissioned
2
Redoutable
Q136
1924
Arsenal de Cherbourg
24 February 1928
3
Vengeur
Q137
1924
Arsenal de Cherbourg
1 September 1928
4
Archimède
Q142
1925
CNF , Caen
6 September 1930
5
Fresnel
Q143
1925
AC St Nazaire-Penhoet
8 June 1929
6
Henri Poincaré
Q140
1925
Arsenal de Lorient
10 April 1929
7
Monge
Q144
1925
FC Mediterranee , La Seyne
25 June 1929
8
Pascal
Q138
1925
Arsenal de Brest
19 July 1928
9
Pasteur
Q139
1925
Arsenal de Brest
19 July 1928
10
Poncelet
Q141
1925
Arsenal de Lorient
10 April 1929
11
Achille
Q147
1926
Arsenal de Brest
28 May 1930
12
Ajax
Q148
1926
Arsenal de Brest
28 May 1930
13
Actéon
Q149
1926
AC Loire , Nantes
10 April 1929
14
Achéron
Q150
1926
AC Loire, Nantes
6 August 1929
15
Argo
Q151
1926
AC Dubigeon , Nantes
11 April 1929
16
Protée
Q155
1927
FC Med. La Seyne
31 July 1930
17
Pégase
Q156
1927
AC Loire, Nantes
28 July 1930
18
Persée
Q154
1927
CNF
23 May 1931
19
Phénix
Q157
1927
AC Dubigeon
12 April 1930
20
Prométhée
Q153
1927
Arsenal de Cherbourg
1930

Questions and formulas:
Question: Which Builder has a Pennant number of Q149?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="q149"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E20,B2:B20="q149"),4))
Level: medium
Question: On what date was the ship with a Pennant number of Q144 commissioned?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="q144"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E20,B2:B20="q144"),5))
Level: medium
Question: How many ships are named Monge?
Formula: ROWS(UNIQUE(FILTER(C1, A1="monge")))
Formula2: ROWS(UNIQUE(FILTER(C2:C20, A2:A20="monge")))
Level: medium