Table:
0
A
B
C
D
E
1
Round
Fixtures
Clubs
New entries
Leagues entering
2
First Round
1
65 → 64
2
Gamma Ethniki
3
Second Round
16
64 → 48
31
Gamma Ethniki
4
Third Round
16
48 → 32
16
Beta Ethniki
5
Fourth Round
16
32 → 16
16
Alpha Ethniki
6
Fifth Round
8
16 → 8
none
none
7
Quarter-finals
4
8 → 4
none
none
8
Semi-finals
2
4 → 2
none
none
9
Final
1
2 → 1
none
none

Questions and formulas:
Question: What is the item for Leagues entering, when the value for Clubs is 8 → 4?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="8 → 4"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E9,C2:C9="8 → 4"),5))
Level: medium
Question: What is the Round when the value for Fixtures is 2?
Formula: LET(query1,SUMMARIZE(A1,SUMX(B1)),FILTER(query1,CHOOSECOLS(query1,2)=2))
Formula2: LET(query1,SUMMARIZE(A2:A9,SUMX(B2:B9)),FILTER(query1,CHOOSECOLS(query1,2)=2))
Level: hard
Question: What is the value for New entries, when the value for Fixtures is less than 16, and when the value for Clubs is 4 → 2?
Formula: LET(query1,LET(query1,FILTER(A1:E1,C1="4 → 2"),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<16))
Formula2: LET(query1,LET(query1,FILTER(A2:E9,C2:C9="4 → 2"),SUMMARIZE(CHOOSECOLS(query1,4),SUMX(CHOOSECOLS(query1,2)))),FILTER(query1,CHOOSECOLS(query1,2)<16))
Level: hard
Question: What is the value for New entries, when the value for Fixtures is 2?
Formula: LET(query1,SUMMARIZE(D1,SUMX(B1)),FILTER(query1,CHOOSECOLS(query1,2)=2))
Formula2: LET(query1,SUMMARIZE(D2:D9,SUMX(B2:B9)),FILTER(query1,CHOOSECOLS(query1,2)=2))
Level: hard