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
8
IWA Xtreme Combat Division Championship
Havok
Lash
October 16, 2010
Bayamón, Puerto Rico

Questions and formulas:
Question: Who was the previous champion of the title won on July 7, 2010?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="july 7, 2010"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,D2:D8="july 7, 2010"),3))
Level: medium
Question: When did Bonecrusher win the championship at Bayamón, Puerto Rico?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="bayamón, puerto rico")*(B1="bonecrusher")),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,(E2:E8="bayamón, puerto rico")*(B2:B8="bonecrusher")),4))
Level: medium
Question: Who is the champion of the title previously held by Lash?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="lash"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,C2:C8="lash"),2))
Level: medium
Question: Which championship was won on July 7, 2010?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="july 7, 2010"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,D2:D8="july 7, 2010"),1))
Level: medium