CREATE TABLE "playoff_statistics" (
  "name" text,
  "nationality" text,
  "position" text,
  "appearances" real,
  "starts" real,
  "minutes" real,
  "goals" real
);

Question: What is the position of the player who is from the United States and has 30 minutes? 
SQL: SELECT "position" FROM "playoff_statistics" WHERE "nationality"='United States' AND "minutes"=30;

Question: What is the most amount of goals any of the players had? 
SQL: SELECT MAX("goals") FROM "playoff_statistics";