Table:
0
A
B
C
D
E
1
Championship
Champion(s)
Previous champion(s)
Date Won
Location
2
IWA Undisputed World Heavyweight Championship
Bonecrusher
Jay-Cobs
January 29, 2012
Bayamón, Puerto Rico
3
IWA Intercontinental Heavyweight Championship
Chris Angel
Diabólico
December 5, 2010
Bayamón, Puerto Rico
4
IWA Caribbean Heavyweight Championship
Xix Xavant
Vacant
October 16, 2010
Aguas Buenas, Puerto Rico
5
IWA Puerto Rico Heavyweight Championship
Noel Rodríguez
Vacant
December 5, 2010
Bayamón, Puerto Rico
6
IWA World Tag Team Championship
Atomo & Sonico
Rick Stanley & Dennis Rivera
November 20, 2010
Bayamón, Puerto Rico
7
IWA World Women's Championship
Vacant
Genesis
July 7, 2010
Bayamón, Puerto Rico

Questions and formulas:
Question: What tourmament has Genesis won previously?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="Genesis"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7="Genesis"),1))
Level: medium
Question: Who was the champion prior to Xix Xavant?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="Xix Xavant"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="Xix Xavant"),3))
Level: medium
Question: Who are the champions that have won at Aguas Buenas, Puerto Rico?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="Aguas Buenas, Puerto Rico"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,E2:E7="Aguas Buenas, Puerto Rico"),2))
Level: medium