problem、question和matter它们的区别是什么？

problem:1. 问题,疑难问题
Measures have been taken to solve traffic problems in big cities.
业已采取措施以解决大城市的交通问题。
2. 【数】习题,几何作图题
3. 难弄的人,引起麻烦的人[S1]
My kid brother is a real problem.
我弟弟真是个难弄的人。
matter:1. 事情;问题;事件[C]
It was a matter of life and death for them.
这事对他们来说是生死攸关。
2. 麻烦事,毛病[the S][(+with)]
There's something the matter with this car.
这辆汽车有点毛病。
3. 物质[U]
Matter exists in three states: solid, liquid and gas.
物质以三种形态存在,即固态、液态和气态。
4. (文章等的)素材,内容;主题[the S]
5. 事态;情势[P]
Matters are different from country to country.
情形因国家而异。
6. 重要性[U]
question:n.
1. 问题;询问[C]
She asked me many questions about my adventures in the Arctic.
她问了我许多有关我在北极探险的问题。
2. 要讨论(或考虑)的问题;争端;难题[C]
3. 怀疑;疑问[C][U][(+about)]
There's no question about his honesty.
他无疑是诚实的。
4. 【语】疑问句[C]

problem: 难题，困惑。
matter:干系
question:问题，需解答的。

problem和question作\"问