LEARN FROM A VERY COMMON QUESTION

A learner asks me:
- What is your name?
I answer:
- My name is Thanh.
Then I go on.
1.       Since my name is Thanh, do you think what my brother's is?
1. bis. Since mine is Thanh, what d' you think my brother's is?
2. If my name is Thanh, tell me what yourS is.
3. That my name is Thanh reminds you of something.
4. Whether my name is Thanh or Bai doesn't matter to you.
5. Because my name is Thanh, I always want to be successful.
6. Those who know that my name is Thanh are pleased to meet me.
7. Although my name is Thanh, I often fail.
8. Why my name is Thanh  is reasonable and understandable, right?
9. How I was named Thanh is clear, isn't it?
10.When I was named Thanh is unknown.