user: Question: Which title had 20 episodes and aired on 11 Jun- 6 Jul?
Columns: ['Airing date', 'English Title (Chinese title)', 'Number of episodes', 'Theme song (T) Sub-theme song (ST)', 'Genre', 'Official website']
Types: ['text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['18 Dec 2006- 10 Feb 2007', 'The Conquest 爭霸', 42.0, 'T: "爭霸" ( Aloys Chan ) ST: "真永遠" ( Aloys Chan )', 'Costume action', 'Official website']
SQL:

assistant: SELECT "English Title (Chinese title)" FROM "Table" WHERE "Number of episodes" = 20.0 AND "Airing date" = '11 Jun- 6 Jul';