The short answer is no, you cannot read Borders books on Kindle. If you see an advert by Borders stating that you can read their e-books on any reader, they are simply lying. The ebook would need to DRM free (no rights management) and would then need to be converted to azw or mobi format. But if it has DRM as most books do, you cannot convert them.
The purpose of the Kindle is to allow the owner to read books. So, yes, you can read books on the Kindle.
No, only from amazon.
There's a free app you can download on your computer to read Kindle books. Just google "Kindle for PC"
The Amazon Kindle allows you to read Kindle books. These can be purchased directly from Amazon, and they are now available in a variety of colors to choose from.
yes
yes
No
Yes, you do have to buy the books on a Kindle so you have books you like. But you can get free books on there too. But they are not all the books you may read.
Yes, you can read Kindle books on your computer by using the Kindle for PC application. This application allows you to access your Kindle library, purchase new books, and read them on your computer screen. You can also sync your progress across devices, so you can seamlessly switch between reading on your computer and other Kindle devices.
Depends whether you can read Urdu.
Kindle has the cloud reader lets you read books without having a kindle e reader. Kindle has free and discounted books that you can download and read.
Kindles can read most e-books that are in supported formats such as Kindle (AZW, MOBI), PDF, DOC, HTML, and TXT. However, books with certain digital rights management (DRM) restrictions may not be compatible with all Kindle devices.