Question: how many episodes are there in attack on titan season one
Answer: Season Episodes Originally aired First aired Last aired 25 April 7 , 2013 ( 2013 - 04 - 07 ) September 29 , 2013 ( 2013 - 09 - 29 ) 12 April 1 , 2017 ( 2017 - 04 - 01 ) June 17 , 2017 ( 2017 - 06 - 17 )