CREATE TABLE "current_venues" (
  "rank" real,
  "venue_name" text,
  "highest_attendance" text,
  "location" text,
  "current_seating_capacity" real
);

Question: What is Lowest Rank, when Location is Rio De Janeiro, Brazil, and when Current Seating Capacity is less than 78,838?
SQL: SELECT MIN("rank") FROM "current_venues" WHERE "location"='rio de janeiro, brazil' AND "current_seating_capacity"<'78,838';

Question: What is the highest Rank, when Location is Kinshasa, DR Congo, and when Current Seating Capacity is less than 80,000?
SQL: SELECT MAX("rank") FROM "current_venues" WHERE "location"='kinshasa, dr congo' AND "current_seating_capacity"<'80,000';

Question: What is the lowest Rank, when the Current Seating Capacity is 137,000?
SQL: SELECT MIN("rank") FROM "current_venues" WHERE "current_seating_capacity"='137,000';

Question: What is Highest Attendance, when Rank is 90, and when Venue Name is Infineon Raceway?
SQL: SELECT "highest_attendance" FROM "current_venues" WHERE "rank"=90 AND "venue_name"='infineon raceway';