CREATE TABLE "k" (
  "artist" text,
  "country" text,
  "number_one_single_s" text,
  "year" real,
  "weeks_at_num1" real,
  "straight_to_num1" text
);

Question: How many weeks was K.Maro at #1?
SQL: SELECT MAX("weeks_at_num1") FROM "k" WHERE "artist"='K.Maro';

Question: How many weeks was France at #1?
SQL: SELECT MAX("weeks_at_num1") FROM "k" WHERE "country"='France';