Table:
0
A
B
C
D
E
F
G
1
Institution
Location
Founded
Type
Enrollment
Joined
Nickname
2
Briar Cliff University
Sioux City, Iowa
1930
Private
1150
2002
Chargers
3
Concordia University, Nebraska
Seward, Nebraska
1894
Private
2200
1969
Bulldogs
4
Dakota Wesleyan University
Mitchell, South Dakota
1885
Private
780
2000
Tigers
5
Doane College
Crete, Nebraska
1872
Private
1000
1969
Tigers
6
Dordt College
Sioux Center, Iowa
1955
Private
1400
2000
Defenders
7
Hastings College
Hastings, Nebraska
1882
Private
1150
1969
Broncos
8
Midland University
Fremont, Nebraska
1883
Private
946
1969
Warriors
9
Morningside College
Sioux City, Iowa
1894
Private
1272
2003
Mustangs
10
Mount Marty College 1
Yankton, South Dakota
1936
Private
1100
2000
Lancers
11
Nebraska Wesleyan University 2
Lincoln, Nebraska
1887
Private
1600
1969
Prairie Wolves

Questions and formulas:
Question: How many joined the Warriors?
Formula: ROWS(UNIQUE(FILTER(F1, G1="Warriors")))
Formula2: ROWS(UNIQUE(FILTER(F2:F11, G2:G11="Warriors")))
Level: medium
Question: How many joined when the enrollment was 1150 in Sioux City, Iowa?
Formula: LET(query1,LET(query1,FILTER(A1:G1,B1="Sioux City, Iowa"),SUMMARIZE(CHOOSECOLS(query1,6),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)=1150))
Formula2: LET(query1,LET(query1,FILTER(A2:G11,B2:B11="Sioux City, Iowa"),SUMMARIZE(CHOOSECOLS(query1,6),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)=1150))
Level: hard
Question: What is Briar Cliff University's nickname?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1="Briar Cliff University"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G11,A2:A11="Briar Cliff University"),7))
Level: medium
Question: What is the nickname of the institution from Concordia University, Nebraska?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,A1="Concordia University, Nebraska"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G11,A2:A11="Concordia University, Nebraska"),7))
Level: medium