Table:
0
A
B
C
D
E
1
Date
City
Opponent
Results¹
Type of game
2
February 26
Split
Sweden
2:1
Friendly
3
April 30
Barcelona , Spain
Spain
1:2
1970 WCQ
4
June 4
Helsinki , Finland
Finland
5:1
1970 WCQ
5
September 3
Belgrade
Romania
1:1
Friendly
6
September 24
Belgrade
USSR
1:3
Friendly
7
October 19
Skoplje
Belgium
4:0
1970 WCQ

Questions and formulas:
Question: On what Date were the Results¹ 4:0?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="4:0"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="4:0"),1))
Level: medium
Question: On what Date were the Results¹ 5:1?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="5:1"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="5:1"),1))
Level: medium
Question: On what Date were the Results¹ 4:0?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="4:0"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="4:0"),1))
Level: medium