Question: what is the average year when the title is Baka to Test to Shōkanjū?
SQL: SELECT AVG("Year") FROM "2-16556852-6" WHERE "Title" = 'Baka to Test to Shōkanjū';

Question: what is the title when the imprint is Dengeki Bunko and the artist is Kiyotaka Haimura?
SQL: SELECT "Title" FROM "2-16556852-6" WHERE "Imprint" = 'Dengeki Bunko' AND "Artist" = 'Kiyotaka Haimura';

Question: what is the imprint when the title is Owari no Chronicle (Ahead series)?
SQL: SELECT "Imprint" FROM "2-16556852-6" WHERE "Title" = 'Owari no Chronicle (Ahead series)';

Question: what is the earliest year when the author is Reki Kawahara?
SQL: SELECT MIN("Year") FROM "2-16556852-6" WHERE "Author" = 'Reki Kawahara';

Question: who is the character when the artist is Take and the year is before 2006?
SQL: SELECT "Character" FROM "2-16556852-6" WHERE "Artist" = 'Take' AND "Year" < 2006.0;