Terms for subject General containing the penny dropped

English	Russian
has the penny dropped?	вам ясно или нет?
has the penny dropped?	дошло до вас?
Suddenly the penny dropped and she smiled	Вдруг до неё дошло, и она улыбнулась (Taras)
the penny has dropped	дошло как до жирафа (triumfov)
you have to wait for the penny to drop	доходит до него, как до жирафа (m_rakova)