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

Question: Name the least clubs involved for leagues being none for semi finals
SQL: SELECT MIN("clubs_involved") FROM "teams" WHERE "leagues_entering_this_round"='none' AND "round"='Semi finals';

Question: Name the new entries this round for third round
SQL: SELECT "new_entries_this_round" FROM "teams" WHERE "round"='Third round';

Question: Name the leagues entering this round for 4
SQL: SELECT "leagues_entering_this_round" FROM "teams" WHERE "clubs_involved"=4;

Question: Name the least clubs remaining
SQL: SELECT MIN("clubs_remaining") FROM "teams";