Table:
0
A
B
C
D
E
1
Call sign
Frequency
City of license
Watts
Class
2
KANZ
91.1 FM
Garden City, Kansas
100,000
C1
3
KCSE
90.7 FM
Lamar, Colorado
250
A
4
KZAN
91.7 FM
Hays, Kansas
7,500
C3
5
KZCK
88.1 FM
Colby, Kansas
2,000
A
6
KZNA
90.5 FM
Hill City, Kansas
100,000
C1
7
KZNK
90.1 FM
Brewster, Kansas
90,000
C1
8
KZNZ
91.5 FM
Elkhart, Kansas
250
A
9
KJJP
105.7 FM
Amarillo, Texas
43,000
C2
10
KTXP
91.5 FM
Bushland, Texas
1,000
A
11
KTOT
89.5 FM
Spearman, Texas
100,000
C0
12
KGUY
91.3 FM
Guymon, Oklahoma
140
A

Questions and formulas:
Question: How many Watts has a Class of a, and a Frequency of 91.5 fm, and a City of license of elkhart, kansas?
Formula: SUM(FILTER(D1, (E1="a")*(B1="91.5 fm")*(C1="elkhart, kansas")))
Formula2: SUM(FILTER(D2:D12, (E2:E12="a")*(B2:B12="91.5 fm")*(C2:C12="elkhart, kansas")))
Level: easy
Question: Which Class has a City of license of garden city, kansas?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="garden city, kansas"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,C2:C12="garden city, kansas"),5))
Level: medium
Question: What is the Frequency that is smaller than 100,000 Watts in guymon, oklahoma?
Formula: LET(query1,LET(query1,FILTER(A1:E1,C1="guymon, oklahoma"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,4)))),FILTER(query1,CHOOSECOLS(query1,2)<100000))
Formula2: LET(query1,LET(query1,FILTER(A2:E12,C2:C12="guymon, oklahoma"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,4)))),FILTER(query1,CHOOSECOLS(query1,2)<100000))
Level: hard
Question: Which Frequency has a Call sign of kcse?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="kcse"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,A2:A12="kcse"),2))
Level: medium