Table: tvb_series_2007_2
Columns: airing_date
english_title_chinese_title
number_of_episodes
theme_song_t_sub_theme_song_st
genre
official_website

Question: Which title aired on 18 dec 2006- 10 feb 2007?
SQL: SELECT "english_title_chinese_title" FROM tvb_series_2007_2 WHERE "airing_date" = '18 dec 2006- 10 feb 2007'

Question: Which genre aired on 12 feb- 9 mar?
SQL: SELECT "genre" FROM tvb_series_2007_2 WHERE "airing_date" = '12 feb- 9 mar'

Question: Which title had 20 episodes and aired on 11 jun- 6 jul?
SQL: SELECT "english_title_chinese_title" FROM tvb_series_2007_2 WHERE "number_of_episodes" = 20 AND "airing_date" = '11 jun- 6 jul'