Meaning of the word "your guess is as good as mine" in English

What does "your guess is as good as mine" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

your guess is as good as mine

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

Idiom

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

Example:
Why did he leave so suddenly? Your guess is as good as mine.
When will the new policy be implemented? Your guess is as good as mine.