Table:
0
A
B
C
D
E
1
Year
Competition
Date
Location
Result
2
1969
World Group, 2nd Round
22 May
Athens
W/O
3
1968
World Group, 2nd Round
23 May
Paris
Loss
4
1968
World Group, 1st Round
21 May
Paris
Win
5
1967
World Group, 1st Round
07 Jun
Berlin
W/O
6
1966
World Group, 2nd Round
12 May
Turin
Loss
7
1966
World Group, 1st Round
10 May
Turin
W/O

Questions and formulas:
Question: What was the earliest year a game was played in Athens?
Formula: MINIFS(A1,D1,"athens")
Formula2: MINIFS(A2:A7,D2:D7,"athens")
Level: easy
Question: On which date was there a win?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="win"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,E2:E7="win"),3))
Level: medium