There's no obvious solution to the problem.
这个问题尚无公认的解决办法。
I managed to find a solution to the problem.
我设法找出了解决问题的.办法。
When would such a solution be possible?
什么情况下可以这么解决？
We need to set about finding a solution.
我们得着手寻找一个解决办法。
Do you have a better solution?
你有更好的解决办法吗？