mod_rewrite not working htaccess

Question

I have a website with 11 sub-domains.I have one main htaccess file in the public_html root folder that has the common shared traits like cache

Answer 1

My apologies, I was the one using a bad folder directory system in my website. This is the one is was using

public_html(www directory) -index.php -vidz(sub-domain) -index.php -days -_imports -css -js -php -content.php -contact.php

This is my upgraded system

public_html(www directory) -index.php -vidz(sub-domain) -index.php -content.php -contact.php -assets -_imports -css -js -php

Which makes it possible to have the links as Mon and use the .htaccess redirect rules below.

    Options +FollowSymlinks
    RewriteEngine On   
    RewriteRule ^monday$ content.php?day=mon [NC,L]
    RewriteRule ^tuesday$ content.php?day=tue [NC,L]
    RewriteRule ^wednesday$ content.php?day=wed [NC,L]
    RewriteRule ^thursday$ content.php?day=thur [NC,L]
    RewriteRule ^friday$ content.php?day=fri [NC,L]
    RewriteRule ^saturday$ content.php?day=sat [NC,L]
    RewriteRule ^sunday$ content.php?day=sun [NC,L]
    RewriteRule ^contact$ contact.php [NC,L]

Thanks to all who answered! It helped me realize this.