CREATE TABLE "teams" (
  "round" text,
  "clubs_remaining" real,
  "clubs_involved" real,
  "winners_from_previous_round" real,
  "new_entries_this_round" text,
  "leagues_entering_at_this_round" text
);

Question: How many clubs remained when there were 4 winners from the previous round?
SQL: SELECT "clubs_remaining" FROM "teams" WHERE "winners_from_previous_round"=4;

Question: What is the maximum number of clubs remaining when the league entering at this round was allsvenskan?
SQL: SELECT MIN("clubs_remaining") FROM "teams" WHERE "leagues_entering_at_this_round"='Allsvenskan';

Question: How many different values of clubs involved were there when the league entering at this round was allsvenskan?
SQL: SELECT COUNT("clubs_involved") FROM "teams" WHERE "leagues_entering_at_this_round"='Allsvenskan';