What is another good international Question and Answer website like this, when Yahoo Answer will be finally shut down?

You can do a search on question and answer websites, and some suggestions come up, including links that list the best or most popular ones (there are a number of them). Each user will have to decide for themselves which, if any, to use. Everyone likes a different type of site. Some will be better moderated than others.

Quora is its got pretty much Most of the Features that Yahoo Answers has 

Quora has proven some promising responses when Yahoo wasnt working for me. Check it out.