CREATE TABLE "top_40_singles" (
  "position" real,
  "song_title" text,
  "artist" text,
  "highest_position" real,
  "sales" real
);

Question: What is the highest position less than 7 that had more than 421,760 in sales for the song Don't Stop Movin'?
SQL: SELECT MAX("highest_position") FROM "top_40_singles" WHERE "sales">'421,760' AND "song_title"='don''t stop movin''' AND "position"<7;

Question: What position is the song Have You Ever with more than 1,037,235 in sales?
SQL: SELECT COUNT("position") FROM "top_40_singles" WHERE "sales">'1,037,235' AND "song_title"='have you ever';

Question: What were the total number of sales for the song 21 Seconds?
SQL: SELECT COUNT("sales") FROM "top_40_singles" WHERE "song_title"='21 seconds';