Asking for someone's name
In order to ask for someone's name, I can say: 你叫什么名字？
But can I also say this: 你叫吗？

Question

Asking for someone's name
In order to ask for someone's name, I can say: 你 叫 什么 名字？
But can I also say this: 你 叫 吗？

Answer

U can say:你叫什么名字？  but u can't say:你叫吗？ Because 你叫吗 doesn't have the object.

Answer

You can ask 你是谁(who are you?)

or你叫什么名字？(what is your name?)=你叫什么？

But 你叫吗is wrong.

Answer

no, you cant. because that sentence doesnt make sense. 叫 means call 什么means what. 吗 just a symbol of question.  hope that can help you

Answer

“你叫” is an uncomplete sentence.
Both "你叫什么?" and  "你叫什么名字？"  are correct.

Answer

If you want other's name, you can use "您贵姓？怎么称呼？”，which is polite and formal