your guess is as good as mine

US /jʊər ɡɛs ɪz æz ɡʊd æz maɪn/
UK /jʊər ɡɛs ɪz æz ɡʊd æz maɪn/
"your guess is as good as mine" picture
1.

твое предположение так же хорошо, как и мое, я тоже не знаю

used to say that you do not know the answer to a question, or do not know what is happening, for the same reason as the person asking

:
Why did he leave so suddenly? Your guess is as good as mine.
Почему он ушел так внезапно? Твое предположение так же хорошо, как и мое.
When will the new policy be implemented? Your guess is as good as mine.
Когда будет реализована новая политика? Твое предположение так же хорошо, как и мое.