1.Hello, I don't know what kind of false you said? =
Hello, I don't know what kind of false that you said to me? It's no mistake.
2.You'd better point it out in details, otherwise I don't want to see this kind of confused words!!
It's no mistake.
Your mistake: You'd better pointed it out in details, otherwise I didn't want to see these confused words!! There's a mistake here "pointed",because "had better" here is a modal verb,should follow a original verb.
3.I hope you can answer my questions in English. It's no mistake.
I think it's not necessary for you to pick the other's mistakes,because you've some mistakes in your sentences! Also you're not a professor and expert! Sorry!