Hi there I was wondering if it would be a good idea to have redirects on 404 pages to other pages in the site? Thanks
Yes and you can also have custom 404 error pages...see here: http://dzineblog.com/2008/11/custom-error-404-pages.html
If you removed a page deliberately for the sake of having upgraded content, it's a good idea to redirect the old page to the new one.
Yes, This is good idea to redirect the old and error containing page to 404 page. Due to this we can save our site from penalty. Netprro sydney
yes you can redirect the 404 page on any working page or you can set a default page for all 404 pages and direct that page for all 404 error pages.
If the old pages do not exist then there is nothing better than to save the links and any link juice the page might have to redirect to a new and existing page.