Table:
text: Artistic gymnastics at the Summer Olympics
Women
Women
Rank_ Nation Gold Silver Bronze Total
1 Soviet Union (URS) 33 29 26 88
2 Romania (ROU) 22 15 20 57
3 United States (USA) 5 10 10 25
4 Hungary (HUN) 7 6 10 23
5 Czechoslovakia (TCH) 9 6 1 16
6 Russia (RUS) 4 5 4 13
7 East Germany (GDR) 3 10 7 20
8 China (CHN) 3 4 5 12
9 Unified Team (EUN) 3 1 2 6
10 Ukraine (UKR) 2 1 0 3
11 Sweden (SWE) 1 1 1 3
12 France (FRA) 1 0 0 1
12 Germany (GER) 1 0 0 1

Question: From the women's artistic gymnastics medal table at the Summer Olympics, what is the lowest total that has a rank less than 8, a silver greater than 6, and 20 for bronze?

Question: What is the average silver score with a gold score greater than 3 in women's Olympic artistic gymnastics at the Summer Olympics with the Soviet Union (urs) as the nation and a bronze score greater than 26?

Question: What is the highest silver, totaling 57, with a bronze greater than 20, among women in artistic gymnastics at the Summer Olympics?