誰がこの問題をしらないんだ？の英語

Who doesn't know this problem?!

No one can solve this problem.

Nobody has solved the problem.

No one can solve this problem.

Nobody can solve this problem.

Nobody has solved the problem.

Nobody can solve this problem.

This problem is beyond me.

Who'll handle this problem?

I had trouble with this question.

This problem is too much for me to handle.

We can't ignore this problem.

Nobody has solved the problem.

I am not concerned with this matter.

Can no one deal with the situation?

I don't really see what the problem is.

I don't know this problem altogether.

No one could solve the problem after all.

I have no idea what's causing these problems.

It's best not to get involved in this problem.

It may be inappropriate to ask questions to you about this problem.

I am not concerned with this matter.

This doesn't concern me.

I can't avoid this problem.

I can't solve this problem.

No one has ever been able to solve this problem.

Who can do this work?

Isn't there any solution where we can somehow avoid these problems?

I was never confronted with such a problem.

I will not dwell any longer upon this subject.