Table:
0
A
B
C
D
E
1
Developer(s)
Release date
Required OS
Genre
Type
2
Robot Entertainment , Gas Powered Games
August 16, 2011
Windows
MMORTS
3D
3
EA Games
2009
Windows
First-person shooter
3D
4
Stunlock Studios
2011
Windows
MOBA
3D
5
THQ
2010-2011
Windows
Real-time strategy
3D
6
Novel, Inc.
2011
Windows
MMORPG
2D
7
Masthead Studios
2013
Windows
Third-person shooter
3D
8
Riot Games
2008-2011
Windows , OS X
MOBA
3D
9
Valve Corporation
2007
Windows , OS X , Linux
First-person shooter
3D

Questions and formulas:
Question: What type of 3D game was released between 2008-2011?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="3d")*(B1="2008-2011")),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,(E2:E9="3d")*(B2:B9="2008-2011")),4))
Level: medium
Question: When did Riot Games release their 3D MOBA game?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="3d")*(D1="moba")*(A1="riot games")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,(E2:E9="3d")*(D2:D9="moba")*(A2:A9="riot games")),2))
Level: medium
Question: When did Masthead Studios release their game?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="masthead studios"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,A2:A9="masthead studios"),2))
Level: medium
Question: What operating system was needed for 2D games?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="2d"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,E2:E9="2d"),3))
Level: medium
Question: What type of 3D game did Valve Corporation release?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="3d")*(A1="valve corporation")),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,(E2:E9="3d")*(A2:A9="valve corporation")),4))
Level: medium
Question: What was the minimum operating system required by Stunlock Studios' game?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="stunlock studios"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,A2:A9="stunlock studios"),3))
Level: medium