Question

is it possible that only admin can answer questions?

Comments

Go for some other CMS and install answers module in that CMS. If admin alone answers the questions, perhaps you don't need this script!

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Sir, Could you perhaps recommend any CMS with said module for such purpose?

Answer 1

I think yes, why not. There must be an a option.
:)

Answer 2

Unfortunately it's not easy in this version. The next major version is planned to include much more control over who can perform which actions.

In the meantime you can achieve this by changing the following line in qa-page-question.php:

$post['answerable']=($post['type']=='Q');

... to ...

$post['answerable']=($post['type']=='Q') && ($qa_login_level>=QA_USER_LEVEL_ADMIN);