Table:
0
A
B
C
D
E
F
1
City
Country
Continent
Summer Olympics
Winter Olympics
Total
2
London
United Kingdom
Europe
3 ( 1908 , 1948 , 2012 )
0
3
3
Athens
Greece
Europe
2 ( 1896 , 1906 [f ], 2004 )
0
3
4
Tokyo
Japan
Asia
2 ( 1964 , 2020 )
0
2
5
Paris
France
Europe
2 ( 1900 , 1924 )
0
2
6
Los Angeles
United States
North America
2 ( 1932 , 1984 )
0
2
7
Lake Placid
United States
North America
0
2 ( 1932 , 1980 )
2
8
Innsbruck
Austria
Europe
0
2 ( 1964 , 1976 )
2
9
St. Moritz
Switzerland
Europe
0
2 ( 1928 , 1948 )
2

Questions and formulas:
Question: When did the Summer Olympics occur in Tokyo?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="tokyo"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F9,A2:A9="tokyo"),4))
Level: medium