Table:
0
A
B
C
D
E
1
Year
Championship
Winning score
Margin
Runner(s)-up
2
1979
Peter Jackson Classic
−7 (75-70-70-70=285)
3 strokes
Nancy Lopez
3
1980
U.S. Women's Open
−4 (70-70-68-72=280)
9 strokes
Hollis Stacy
4
1983
Nabisco Dinah Shore
−6 (70-70-70-72=282)
2 strokes
Beth Daniel , Kathy Whitworth
5
1988
Nabisco Dinah Shore
−14 (71-66-66-71=274)
2 strokes
Colleen Walker
6
1991
Nabisco Dinah Shore
−15 (67-70-68-68=273)
8 strokes
Dottie Mochrie

Questions and formulas:
Question: What is the winning score of the match with a margin of 3 strokes?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="3 strokes"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,D2:D6="3 strokes"),3))
Level: medium
Question: How many years was there a peter jackson classic?
Formula: ROWS(UNIQUE(FILTER(A1, B1="peter jackson classic")))
Formula2: ROWS(UNIQUE(FILTER(A2:A6, B2:B6="peter jackson classic")))
Level: medium
Question: Which year was the peter jackson classic?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="peter jackson classic"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,B2:B6="peter jackson classic"),1))
Level: medium