Table:
0
A
B
C
D
E
1
Name
Built
Listed
Location
County
2
Arkwright Bridge
1888
1978-12-12
Cranston , West Warwick
Kent , Providence
3
Boston and Providence Railroad Bridge
1884
1980-11-28
East Providence
Providence
4
Division Street Bridge
1876
1983-11-18
Pawtucket
Providence
5
Interlaken Mill Bridge
ca.1885
1978-12-22
Coventry
Kent
6
Main Street Bridge
1858
1983-11-18
Pawtucket
Providence
7
Mount Hope Bridge
1927, 1929
1976-01-31
Bristol , Portsmouth
Bristol , Newport

Questions and formulas:
Question: What year was the bridge in Kent built?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="kent"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,E2:E7="kent"),2))
Level: medium
Question: In which county is East Providence?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="east providence"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="east providence"),5))
Level: medium
Question: What county had a bridge biult in 1884?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1=1884),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7=1884),5))
Level: medium