Table:
0
A
B
C
D
E
F
1
Class
Quantity
Type
Delivered
K.B.Sts.B. Class
Retired
2
A
24
2A n2
1857-59
B IX*
1902-08
3
B
66
1B n2
1858-66
B V
1900-11
4
B
19
1B n2
1873-75
B IX
1907-12
5
C
12
C n2
1862-63
C II
1899-06
6
C
52
C n2
1867-75
C III
1921-24
7
D
14
B n2t
1866-71
D II
1895-24
8
E
2
B n2
1869
B V
1900-08

Questions and formulas:
Question: What is the type of the locomotive which was delivered in 1857-59?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="1857-59"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,D2:D8="1857-59"),3))
Level: medium
Question: What is the highest quantity of the b ix k.b.sts.b.?
Formula: MAXIFS(B1,E1,"b ix")
Formula2: MAXIFS(B2:B8,E2:E8,"b ix")
Level: easy
Question: What is the lowest quantity of the 1b n2 type, which was retired in 1907-12?
Formula: MIN(FILTER(B1, (C1="1b n2")*(F1="1907-12")))
Formula2: MIN(FILTER(B2:B8, (C2:C8="1b n2")*(F2:F8="1907-12")))
Level: easy