No. You can start a question with "Seriously, though," but you may want to limit that to informal speech.
Yes, if it's a well thought out question.
what was the critical catalyst that led kodak to start taking the japanese market seriously
(severity) The seriousness of his injury had his family worried that he might die. (solemnity) The President found it hard to maintain his seriousness when pardoning the Thanksgiving turkey.
I seriously thought Mary and Cody hated each other.
Please answer my question.
if they say "what do you think" or similar at the start of a question then its thought provoking and if not then its seeking correct answer.
Did you seriously just ask that question? SERIOUSLY ?..............................
seriously. this question isn't a question?
Is this even a real question? Seriously, man. What does your mower run on? Hopes and dreams?
Plenty of questions are being answered seriously and with thought and care. Please ask your question. One very important step is to first put your question in a complete sentence so it can be understood, and then put it in the correct category. Miscellaneous is not the category for everything!
The first carol singers were cavemen (Ogggg!). But seriously, you should not be asking that question. The first carol singers were cavemen (Ogggg!). But seriously, you should not be asking that question. The first carol singers were cavemen (Ogggg!). But seriously, you should not be asking that question. The first carol singers were cavemen (Ogggg!). But seriously, you should not be asking that question.
Are you seriously going to ask that question? i mean just look at him. He sings Thinking About You to his boyfriend. But seriously how stupid are you to look up this question when you already know the question