comma after question mark: a question such as who am I?, man is

[angel heart1]

Hi,

Please is it correct to put a comma immediately after a question mark?

For example: When man asks questions such as who am I? where have I come from? what is the meaning of life?, man is trying to see himself as human.

Thanks

 

[Forero]

Put the questions in quotation marks, and go ahead and use commas:

When man asks questions such as "Who am I?", "Where did I come from?", "What is the meaning of life?", he is trying to see himself as human.

 

[angel heart1]

Thanks a lot.