WordPress displays your post in the order you publish them and if you need to rearrange them you have to change their publishing dates. Changing post dates creates dead links and you lost your post’s back links. So rather than changing post dates you can use this new and easy technique for rearranging your WordPress blog posts.
Install and activate Post Types Order. It is a powerful plugin allows you to order posts and post types objects using Drag and Drop Sortable javascript capability. You can quickly and easily reorder the posts for any custom post types you defined. Not only this but also you can have the admin posts interface sorted per your new sort.
Visit your admin panel Settings->Post Types Order and Use Re-Order link which appear into each post type section to make your sort.