Table:
0
A
B
C
D
E
1
Date
Tournament
Surface
Opponent
Score
2
August 15, 2005
Manta , Ecuador
Hard
Lesley Joseph
6–4, 6–1
3
October 10, 2005
Quito , Ecuador
Clay
Marcos Daniel
1–6, 7–6 (7–1) , 6–2
4
July 31, 2006
Belo Horizonte , Brazil
Hard
André Sá
6–3, 0–6, 6–4
5
August 14, 2006
Manta, Ecuador
Hard
Brian Dabul
6–2, 6–2
6
December 31, 2007
São Paulo , Brazil
Hard
Carlos Berlocq
6–4, 3–6, 7–5
7
January 8, 2012
São Paulo, Brazil
Hard
Gastão Elias
7–6 (7–5) , 7–6 (7–1)
8
March 18, 2012
Guadalajara , Mexico
Hard
Paolo Lorenzi
6–3, 7–6 (6–4)

Questions and formulas:
Question: What is the surface when the tournament is manta, ecuador?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="manta, ecuador"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,B2:B8="manta, ecuador"),3))
Level: medium
Question: What is the surface for the tournament of manta, ecuador?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="manta, ecuador"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,B2:B8="manta, ecuador"),3))
Level: medium
Question: What tournament is lesley joseph the opponent?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="lesley joseph"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,D2:D8="lesley joseph"),2))
Level: medium
Question: What date was marcos daniel the opponent?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="marcos daniel"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,D2:D8="marcos daniel"),1))
Level: medium