Terms for subject Idiomatic containing closed

English	Russian
closed book	непонятное (Interex)
closed book	загадочное (Interex)
closed book	труднопонимаемое (thing that cannot be easily understood Interex)
fly will not get into a closed mouth	в закрытый рот муха не влетит (Yeldar Azanbayev)
fly will not get into a closed mouth	слово – серебро, молчание – золото (Yeldar Azanbayev)
fly won't get into a closed mouth	в закрытый рот муха не влетит (Yeldar Azanbayev)
fly won't get into a closed mouth	слово – серебро, молчание – золото (Yeldar Azanbayev)
the circle has been closed	круг замкнулся (VLZ_58)
the circle is closed	круг замкнулся (VLZ_58)
with one's eyes closed	одной левой (SirReal)