Terms for subject General containing open questions

English	Russian
an open question	открытый вопрос
an open question	нерешённый вопрос
his veracity is open to question	его правдивость ещё под вопросом
it is still an open question	это всё ещё нерешённый вопрос
it's an open question	бабка надвое гадала
it's an open question	бабушка ещё надвое гадала
it's an open question	бабушка надвое гадала
it's an open question	старуха ещё надвое сказала
it's an open question	старуха ещё надвое гадала
it's an open question	бабушка ещё надвое сказала
it's an open question	бабка надвое сказала
it's an open question	это ещё вопрос
leave a question open	не выносить окончательного решения
leave a question open	оставить вопрос открытым
leave open the question	оставлять вопрос открытым (Dias)
leave the question open	оставлять вопрос открытым
open a question	поднять вопрос
open-ended question	вопрос, допускающий неограниченное число ответов
open-ended question	открытый вопрос (A question that requires respondents to provide answers in their own words, rather than "yes", "no", or 'don't know'. Such questions as Why…? What…? When…? are asked without providing answers from which to choose.)
open-ended question	вопрос открытого типа (Open-ended questions encourage full, meaningful answers based on the respondents’ knowledge and perception. Open-ended questions enable you to collect information about topics you may not have considered. Closed questions are the opposite of open-ended questions. They require a short or single-word answer, often yes or no. Mikhail.Brodsky)
the question remains open	по-прежнему не до конца ясно (bigmaxus)
the question remains open	вопрос остаётся открытым (В.И.Макаров)