None delete.. actually you may be able to delete them form view. but they will always be stored away.
I dont think so
Dr Web is an antivirus program. It is used to perform searches on one's computer and to detect and delete viruses. It can also help to prevent one's computer for getting viruses.
A Web-Attic
Yes, Google searches the web. That's how you get your information.
Yes, some web sites use 'cookies' to track user activities.
There are a number of ways you could use to improve your web searches. You could for example type in key words instead of sentences.
Searches for websites that you have never visited
China
Visit Alexa or Google Trends.
world wide web
Delete your entire web pages over your web server after some crowlling search engine have removed in inbox .
You can not delete a web site that is not yours. If you want to stop using a web site, simply do not go there anymore.