How can I make or render a website with wiki features(for e.g wikipedia) with Drupal? The question is can I render wiki features in my website which is to be made with Drupal.For e.g if I make a website with tons of features how can Wiki feature be made functional with Drupal.If no should I make new themes.
To allow contributors to easily link between multiple pages, check out the Freelinking module.

To enable simple plain-text formatting, check out the Markdown module.

To allow editing subsections of text individually, check out the Edit Section module.

To automatically generate a Table of Contents for each node, check out the Table of Contents module.

To move comments to a separate page (similar to the Wikipedia "Talk" pages), check out the Talk module.