Table:
0
A
B
C
D
E
1
Name
Street address
Years as tallest
Height feet / m
Floors
2
Wells Fargo Building
309 SW 6th Avenue
1907–1911
185 / 56
12
3
Yeon Building
522 SW 5th Avenue
1911–1913
194 / 59
15
4
American Bank Building
621 SW Morrison Street
1913–1927
207 / 63
15
5
Public Service Building
920 SW Sixth Avenue
1927–1962
220 / 67
16
6
Hilton Portland Hotel
921 SW Sixth Avenue
1963–1965
241 / 73
22
7
Harrison West Condominium Tower
200 SW Harrison
1965–1969
256 / 78
25
8
Union Bank of California Tower
707 SW Washington Street
1969–1970
268 / 82
15
9
Standard Insurance Center
900 SW Fifth Avenue
1970–1972
367 / 112
27
10
Wells Fargo Center
1300 SW 5th Avenue
1972–present
546 / 166
41

Questions and formulas:
Question: What's the least amount of floors at 921 sw sixth avenue?
Formula: MINIFS(E1,B1,"921 sw sixth avenue")
Formula2: MINIFS(E2:E10,B2:B10,"921 sw sixth avenue")
Level: easy
Question: What's the address of the union bank of California tower?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="union bank of california tower"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,A2:A10="union bank of california tower"),2))
Level: medium
Question: What were the years that the building at 200 sw harrison was considered to be the tallest building?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="200 sw harrison"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,B2:B10="200 sw harrison"),3))
Level: medium