Table:
0
A
B
C
D
E
F
1
Seat
Season 1
Season 2
Season 3
Season 6
Season 7
2
1
Jim Treliving
Jim Treliving
Jim Treliving
Jim Treliving
Jim Treliving
3
2
Kevin O'Leary
Kevin O'Leary
Kevin O'Leary
Kevin O'Leary
Kevin O'Leary
4
3
Jennifer Wood
Arlene Dickinson
Arlene Dickinson
Arlene Dickinson
Arlene Dickinson
5
4
Laurence Lewin
Laurence Lewin
W. Brett Wilson
Bruce Croxon
Bruce Croxon
6
5
Robert Herjavec
Robert Herjavec
Robert Herjavec
Robert Herjavec
David Chilton

Questions and formulas:
Question: Which Season 1 has a Season 7 of david chilton?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="david chilton"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,F2:F6="david chilton"),2))
Level: medium
Question: Which Seat has a Season 6 of kevin o'leary?
Formula: SUMIFS(A1,E1,"kevin o'leary")
Formula2: SUMIFS(A2:A6,E2:E6,"kevin o'leary")
Level: easy
Question: Which Season 7 has a Season 6 of jim treliving?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="jim treliving"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,E2:E6="jim treliving"),6))
Level: medium
Question: Which Season 7 has a Seat larger than 1, and a Season 3 of w. brett wilson?
Formula: LET(query1,LET(query1,FILTER(A1:F1,D1="w. brett wilson"),SUMMARIZE(CHOOSECOLS(query1,6),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)>1))
Formula2: LET(query1,LET(query1,FILTER(A2:F6,D2:D6="w. brett wilson"),SUMMARIZE(CHOOSECOLS(query1,6),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)>1))
Level: hard
Question: Which Season 3 has a Season 7 of jim treliving?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="jim treliving"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F6,F2:F6="jim treliving"),4))
Level: medium