Table:
0
A
B
C
D
E
1
Date
Visiting team
Home team
Stadium
Regular season / Preseason
2
September 8, 2002
Dallas Cowboys 10
Houston Texans 19
Reliant Stadium
Regular season game.
3
August 15, 2003
Houston Texans 6
Dallas Cowboys 34
Texas Stadium
Preseason game.
4
August 14, 2004
Dallas Cowboys 0
Houston Texans 18
Reliant Stadium
Preseason game.
5
August 15, 2005
Houston Texans 9
Dallas Cowboys 21
Texas Stadium
Preseason game.
6
October 15, 2006
Houston Texans 6
Dallas Cowboys 34
Texas Stadium
Regular season game.
7
August 25, 2007
Dallas Cowboys 16
Houston Texans 28
Reliant Stadium
Preseason game.
8
August 22, 2008
Houston Texans 22
Dallas Cowboys 23
Texas Stadium
Preseason game.
9
August 28, 2010
Dallas Cowboys 7
Houston Texans 23
Reliant Stadium
Preseason game.
10
September 26, 2010
Dallas Cowboys 27
Houston Texans 13
Reliant Stadium
Regular season game.
11
August 29, 2013
Houston Texans 24
Dallas Cowboys 6
AT&T Stadium
Preseason game.

Questions and formulas:
Question: What type of regular season/preseason game was played on August 25, 2007?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="august 25, 2007"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,A2:A11="august 25, 2007"),5))
Level: medium
Question: In what stadium was the game on August 22, 2008 played?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="august 22, 2008"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,A2:A11="august 22, 2008"),4))
Level: medium
Question: In what stadium was the home team Dallas Cowboys 21?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="dallas cowboys 21"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,C2:C11="dallas cowboys 21"),4))
Level: medium
Question: On what date was the home team the Dallas Cowboys 34?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="dallas cowboys 34"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,C2:C11="dallas cowboys 34"),1))
Level: medium
Question: Who was the visiting team on October 15, 2006?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="october 15, 2006"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,A2:A11="october 15, 2006"),2))
Level: medium