The idiom "your guess is as good as mine" is used when someone doesn't know the answer to a question and they believe that the person they are talking to doesn't know the answer either. It means that both people have the same level of knowledge or understanding about the topic in question.
For example, if someone asks you, "When will it stop raining?" and you have no idea, you could respond by saying, "Your guess is as good as mine." This means that you don't know when it will stop raining, and you believe that the person asking the question doesn't know either.
This idiom is often used in informal conversations, and it's a way of admitting that you don't have the answer without feeling embarrassed or ashamed. It's a polite way of saying that you don't know something, and it's a way of acknowledging that the other person doesn't know either.
• I don't know who stole the money from the safe. Your guess is as good as mine.
• I'm not sure when the project will be finished. Your guess is as good as mine.
• I don't know how to fix the car. Your guess is as good as mine.
• I have no idea what the weather will be like tomorrow. Your guess is as good as mine.
• I have no clue how to solve this difficult problem. Your guess is as good as mine.
• I can't predict what the outcome of the election will be. Your guess is as good as mine.