Table:
0
A
B
C
D
E
1
Episode Number
Location
Original Airdate
Challenge Winner
Challenge
2
20
Las Vegas , Nevada
August 12, 2009
Food
6-pound "Big Badass Burrito"
3
21
Charleston, South Carolina
August 19, 2009
Man
Spicy tuna sushi
4
22
San Francisco, California
August 26, 2009
Man
The Kitchen Sink (2 gallons of ice cream)
5
23
Durham, North Carolina
September 2, 2009
Food*
The Doughman (food & sport triathlon)
6
24
Honolulu, Hawaii
September 9, 2009
Food
Mac Daddy Pancake Challenge
7
26
Philadelphia, Pennsylvania
September 23, 2009
Man
5-pound "Ultimate Cheesesteak"
8
28
Springfield, Illinois
October 7, 2009
Man
Firebrand chili
9
33
Brooklyn, New York
November 11, 2009
Man
Suicide Six Wings Challenge (spicy wings)
10
37
New Brunswick, New Jersey
December 9, 2009
Food
Fat Sandwich Challenge (five stuffed sandwiches)

Questions and formulas:
Question: What location did the episode that aired originally on August 26, 2009 take place at?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="August 26, 2009"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,C2:C10="August 26, 2009"),2))
Level: medium
Question: How many dates originally aired episodes located in Philadelphia, pennsylvania?
Formula: ROWS(UNIQUE(FILTER(C1, B1="Philadelphia, Pennsylvania")))
Formula2: ROWS(UNIQUE(FILTER(C2:C10, B2:B10="Philadelphia, Pennsylvania")))
Level: medium
Question: What was the challenge for episode 28?
Formula: LET(query1,SUMMARIZE(E1,SUMX(A1)),FILTER(query1,CHOOSECOLS(query1,2)=28))
Formula2: LET(query1,SUMMARIZE(E2:E10,SUMX(A2:A10)),FILTER(query1,CHOOSECOLS(query1,2)=28))
Level: hard
Question: How many original air dates were there for episode 22?
Formula: ROWS(UNIQUE(FILTER(C1, A1=22)))
Formula2: ROWS(UNIQUE(FILTER(C2:C10, A2:A10=22)))
Level: medium