Is Selenium server needed to run selenium Webdriver scripts?

Related questions

1. How many days it will take to learn manual testing?
2. What is Keys chord in selenium?
3. Does automation replace manual testing?
4. What can be automated using selenium?
5. Can we do automation testing without manual testing?
6. What is QA automation?
7. What are your strengths and weaknesses interview?
8. Can you achieve 100% automation?
9. What is the current version of selenium?
10. How many parameters can selenium commands have at maximum?

Tags

1. #browser
2. #different
3. #firefox
4. #calls
5. #supported
6. #makes
7. #webdriver
8. #server
9. #script
10. #start
11. #automation
12. #require
13. #chrome
14. #selenium
15. #between
16. #safari
17. #browsers
18. #there
19. #scripts
20. #executing