Table:
0
A
B
C
D
E
1
Name
Built
Listed
Location
County
2
Clarkson Bridge
1904
1974-06-25
Cullman
Cullman
3
Coldwater Creek Covered Bridge
ca.1845
1973-04-11
Coldwater
Calhoun
4
Easley Covered Bridge
ca.1927
1981-08-20
Oneonta
Blount
5
Five Mile Creek Bridge
ca.1911
1973-02-28
McCalla
Jefferson
6
Half-Chance Bridge
ca.1880
1972-09-14
Dayton
Marengo
7
Horton Mill Covered Bridge
1934, 1935
1970-12-29
Oneonta
Blount
8
Kymulga Mill and Covered Bridge
ca.1860, ca.1864
1976-10-29
Childersburg
Talladega
9
Nectar Covered Bridge
1934
1981-08-20
Nectar
Blount
10
Oakachoy Covered Bridge
1915
removed 2001-09-23
Nixburg
Coosa
11
Edmund Pettus Bridge
1940
2013-03-11
Selma
Dallas
12
Swann Covered Bridge
1933
1981-08-20
Cleveland
Blount

Questions and formulas:
Question: When was the oakachoy covered bridge listed?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="oakachoy covered bridge"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,A2:A12="oakachoy covered bridge"),3))
Level: medium
Question: In which county is the swann covered bridge located?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="swann covered bridge"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,A2:A12="swann covered bridge"),5))
Level: medium
Question: Which bridge is located in Nectar, in Blount County?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="blount")*(D1="nectar")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,(E2:E12="blount")*(D2:D12="nectar")),1))
Level: medium
Question: Which county built a bridge in 1934?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1=1934),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,B2:B12=1934),5))
Level: medium
Question: In which year did Blount County build a bridge in Cleveland that was listed on 1981-08-20?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="blount")*(C1="1981-08-20")*(D1="cleveland")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,(E2:E12="blount")*(C2:C12="1981-08-20")*(D2:D12="cleveland")),2))
Level: medium