Table:
0
A
B
C
D
E
1
Ship's name
Date entered service
Date withdrawn
Tonnage
Type of Ship
2
Oranje Nassau
27 August 1945
July 1954
3053
Twin Screw Steamer
3
Mecklenburg
21 November 1945
25 October 1959
2907
Twin Screw Steamer
4
Koningin Emma
5 March 1948
December 1968
4353
Twin Screw Motorship
5
Prinses Beatrix
31 May 1948
September 1968
4353
Twin Screw Motorship
6
Koningin Wilhelmina
7 February 1960
1 July 1978
6228
Twin Screw Motorship
7
Koningin Juliana
17 October 1968
8 April 1984
6682
Twin Screw Ro-Ro Motorship
8
Prinses Beatrix
29 June 1978
May 1986
9356
Twin Screw Ro-Ro Motorship
9
Prins Oberon
11 February 1983
11 March 1983
7993
Twin Screw Ro-Ro Motorship
10
Zeeland
1 April 1984
25 March 1986
6801
Twin Screw Ro-Ro Motorship
11
Armorique
25 March 1986
16 April 1986
5731
Twin Screw Ro-Ro Motorship
12
Koningin Beatrix
16 April 1986
2 June 1997
31189
Twin Screw Ro-Ro Motorship
13
Duchess Anne
January 1989
February 1989
9796
Twin Screw Ro-Ro Motorship

Questions and formulas:
Question: what is the sum of tonnage when the type of ship is twin screw ro-ro motorship and the date entered service is 11 february 1983?
Formula: SUM(FILTER(D1, (E1="twin screw ro-ro motorship")*(B1="11 february 1983")))
Formula2: SUM(FILTER(D2:D13, (E2:E13="twin screw ro-ro motorship")*(B2:B13="11 february 1983")))
Level: easy
Question: what is the ships name that is a twin screw ro-ro motorship and entered service on 11 february 1983?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="twin screw ro-ro motorship")*(B1="11 february 1983")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E13,(E2:E13="twin screw ro-ro motorship")*(B2:B13="11 february 1983")),1))
Level: medium
Question: what is the least tonnage for the ship(s) that entered service on 11 february 1983?
Formula: MINIFS(D1,B1,"11 february 1983")
Formula2: MINIFS(D2:D13,B2:B13,"11 february 1983")
Level: easy
Question: what is the name of the ship that was withdrawn from service on 25 march 1986?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="25 march 1986"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E13,C2:C13="25 march 1986"),1))
Level: medium
Question: what is the tonnage of the ship koningin juliana?
Formula: SUMIFS(D1,A1,"koningin juliana")
Formula2: SUMIFS(D2:D13,A2:A13,"koningin juliana")
Level: easy