CREATE TABLE "some_differences_in_relation_to_later_ed" (
  "date" real,
  "doubles_i_class" real,
  "doubles_ii_class" real,
  "greater_doubles" real,
  "doubles" real,
  "semidoubles" real,
  "total" real
);

Question: What is the lowest Greater Doubles, when Doubles, I Class is 23, and when Doubles, II Class is less than 27?
SQL: SELECT MIN("greater_doubles") FROM "some_differences_in_relation_to_later_ed" WHERE "doubles_i_class"=23 AND "doubles_ii_class"<27;

Question: What is the highest Doubles, II Class, when Doubles, I Class is less than 19?
SQL: SELECT MAX("doubles_ii_class") FROM "some_differences_in_relation_to_later_ed" WHERE "doubles_i_class"<19;

Question: What is the lowest Semidoubles, when Doubles, II Class is 18, and when Total is less than 164?
SQL: SELECT MIN("semidoubles") FROM "some_differences_in_relation_to_later_ed" WHERE "doubles_ii_class"=18 AND "total"<164;

Question: What is the lowest Date, when Doubles, II Class is 18, and when Total is less than 164?
SQL: SELECT MIN("date") FROM "some_differences_in_relation_to_later_ed" WHERE "doubles_ii_class"=18 AND "total"<164;