Table:
0
A
B
C
D
E
1
Date
City
Country
Venue
Attendance
2
July 20, 2007
Sault Ste. Marie, Michigan
United States
Kewadin Casino
10,000
3
July 21, 2007
Cadott, Wisconsin
United States
Cadott Rock Fest
35,000
4
July 25, 2007
Anaheim, California
United States
Cisco Customer Appreciation Event
1,000
5
July 27, 2007
San Jacinto, California
United States
Soboba Casino Arena
3,500
6
September 15, 2007
Whistler, British Columbia
Canada
Blackcomb Mountain
Canceled
7
October 26, 2007
Paradise, Nevada
United States
Mandalay Bay Resort
1,500

Questions and formulas:
Question: When is  Cadott Rock Fest taken place?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="cadott rock fest"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="cadott rock fest"),1))
Level: medium
Question: Which City has mandalay bay resort
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="mandalay bay resort"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="mandalay bay resort"),2))
Level: medium
Question: Which City has a Date on october 26, 2007
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="october 26, 2007"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="october 26, 2007"),2))
Level: medium
Question: Which Attendance has Mandalay Bay Resort
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="mandalay bay resort"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="mandalay bay resort"),5))
Level: medium
Question: When is Country of united states, and a Venue of mandalay bay resort in?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(C1="united states")*(D1="mandalay bay resort")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,(C2:C7="united states")*(D2:D7="mandalay bay resort")),1))
Level: medium
Question: When has a City of san jacinto, california?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="san jacinto, california"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="san jacinto, california"),1))
Level: medium