Table:
0
A
B
C
D
E
F
G
H
1
Constituency
Electorate
Turnout
Spoilt
Valid Poll
Quota
Seats
Candidates
2
Connacht–Ulster
464,661
322,664 (69.4%)
10,362 (3.2%)
312,302
78,076
3
13
3
Dublin
711,416
455,539 (64.0%)
7,137 (1.5%)
448,402
89,681
4
11
4
Leinster
571,694
391,697 (68.5%)
14,106 (3.6%)
377,591
94,398
3
15
5
Munster
703,913
505,219 (71.7%)
10,786 (2.2%)
494,433
82,406
5
15
6
Total
2,451,684
1,675,119 (68.3%)
42,391 (2.6%)
1,632,728
—
15
44

Questions and formulas:
Question: What is the smallest electorate with 78,076 quota and less than 13 candidates?
Formula: MIN(FILTER(B1, (F1=78076)*(H1<13)))
Formula2: MIN(FILTER(B2:B6, (F2:F6=78076)*(H2:H6<13)))
Level: easy
Question: What is the turnout with 15 candidates and more than 377,591 valid poll?
Formula: LET(query1,LET(query1,FILTER(A1:H1,H1=15),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)>377591))
Formula2: LET(query1,LET(query1,FILTER(A2:H6,H2:H6=15),SUMMARIZE(CHOOSECOLS(query1,3),SUMX(CHOOSECOLS(query1,5)))),FILTER(query1,CHOOSECOLS(query1,2)>377591))
Level: hard