Table:
0
A
B
C
D
E
1
Nation
Gold
Silver
Bronze
Total
2
Belgium
2
2
1
5
3
Switzerland
1
0
0
1
4
Italy
0
1
0
1
5
Denmark
0
0
1
1
6
Czech Republic
0
0
1
1

Questions and formulas:
Question: The nation of denmark has what average total nad more than 0 gold?
Formula: AVERAGE(FILTER(E1, (A1="denmark")*(B1>0)))
Formula2: AVERAGE(FILTER(E2:E6, (A2:A6="denmark")*(B2:B6>0)))
Level: easy
Question: Switzerland has how many gold and less than 0 silver?
Formula: SUM(FILTER(B1, (A1="switzerland")*(C1<0)))
Formula2: SUM(FILTER(B2:B6, (A2:A6="switzerland")*(C2:C6<0)))
Level: easy