Table:
0
A
B
C
D
E
1
Year
Theme
Artist
Mintage
Issue Price
2
2005
40th Anniversary, Canada's Flag
William Woodruff
N/A
$84.95
3
2006
Victoria Cross
Royal Canadian Mint Staff
N/A
$84.95
4
2007
Thayendanegea Joseph Brant
RCM Staff based on image by Laurie McGaw
N/A
$89.95
5
2008
400th Anniversary of Quebec
Suzanne Duranceau
60,000
$89.95
6
2009
100th Anniversary of Flight
Jason Bouwman
55,000
$99.95

Questions and formulas:
Question: Which artist created the silver dollar for the 400th anniversary of Quebec?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="400th anniversary of quebec"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,B2:B6="400th anniversary of quebec"),3))
Level: medium
Question: Which year did the Royal Canadian Mint Staff create a silver dollar?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="royal canadian mint staff"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,C2:C6="royal canadian mint staff"),1))
Level: medium
Question: How many coins by Suzanne Duranceau were minted?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="suzanne duranceau"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,C2:C6="suzanne duranceau"),4))
Level: medium