Table:
0
A
B
C
D
E
1
Wrestler
Reign
Days held
Location
Event
2
Filoso
1
Unknown
N/A
Live event
3
Osamu Namiguchi
1
7
Nagano , Japan
Live event
4
Katsuhiko Nakajima
1
297
Hiroshima , Japan
Live event
5
Tatsuhito Takaiwa
1
8
Tokyo , Japan
Live event
6
Vacated
—
—
N/A
N/A
7
The★ZEST
1
261
Yamagata , Japan
Live event
8
NOIZ
1
2127 +
Tokyo , Japan
Miracle Rocket ~2nd Impact~

Questions and formulas:
Question: What days held has noiz as the wrestler?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="noiz"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="noiz"),3))
Level: medium
Question: What location has tatsuhito takaiwa as the wrestler?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="tatsuhito takaiwa"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,A2:A8="tatsuhito takaiwa"),4))
Level: medium
Question: What event has 8 as the days held?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="8"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,C2:C8="8"),5))
Level: medium
Question: What event has unknown as the days held.?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="unknown"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E8,C2:C8="unknown"),5))
Level: medium