lucy24 - 7:25 pm on Sep 19, 2013 (gmt 0)
Honestly this site has like 20 page
Literally 20? Or really more like 200? If it truly is about 20 pages, then heck yes: code a separate explicit redirect for each page. But keep them all in the same htaccess file.
Once you've got your list of 20 exact redirects, you will probably be able to look at them and see which ones can be collapsed into a single rule with appropriate capturing.