solving problems
solving a puzzle
solving a mystery
solving the issue
A: Have you finished solving the math problem?
A：你解完那道数学题了吗？
B: Not yet, I am still solving it.
B：还没有，我还在解它。
1) 解决问题
2) 解答谜题
3) 处理事务
1. 解决，解答
present participle / gerund
1. the act of finding a solution to a problem or difficulty
Synonym: resolving, settling