What is the other alternative of yahooanswers where i can ask all types of questions and get relevant answers?

http://www.answerbag.com/

Answerbag is the place to ask questions and share knowledge.

http://www.answers.com/

The site offers useful answers in categories like business, health, travel, technology, science, entertainment, arts, history and many more.

http://stackoverflow.com/

Stack Overflow is a collaboratively edited question and answer site for programmers — regardless of platform or language.

http://www.blurtit.com/

ASK, FIND, ENLIGHTEN. These three words sum up what Blurtit is all about.

http://www.mahalo.com/answers/

Mahalo Answers strives to help you get helpful and trustworthy answers to your questions as quickly as possible.

http://www.answerz.net/

Answerz.net lets you search all the major questions & answers websites on the internet from one search box.

http://osqa.net/

Here you can ask and answer questions, comment and vote for the questions of others and their answers.

http://www.formspring.me/

formspring.me is a Free, simple, service created by FormSpring that allows you to create anonymous question boxes for all of your social networks.

http://www.answerly.com/

Answerly is a free service where real people research your questions and send answers to your email inbox in minutes.

www.sodahead.com/

Create and vote on public opinion polls, share knowledge and express opinions in a dynamic social community.

www.funadvice.com/

FunAdvice combines social media with Q&A. Sure, there is the basic question and answer format, profiles and a point system that all those other sites have. But FunAdvice has more.

www.picanswers.com/

PicAnswers connects people that have questions about an unidentified item with a community of users that can offer expertise.

www.defuddle.com/

Defuddle is a place to answer questions. When faced with dilemmas we make it easy to make up your mind.

www.321answers.com/

321answers.com is a free questions and answers community which provides users a place to ask and answer questions.

http://omgili.com/

Omgili is a search engine designed to index web-based discussion forums.

Use the link to find any "similar" type of websites. The closest I have found to Yahoo is Answerbag. .A B is slightly better at dealing with the troll-problem, but not by much. Too many website-forums owners-staff choose to look the other way for some odd reason and the rational users pay for this apathetic and irresponsible decision. Allexperts is the best if you simply need answers and it's troll-free, because it's not an open type of forum.

Look at some of the answers that get through, they are good examples.

Vote down the troll answers, that way, there is a (yeah, subtle) pressure on those people to give decent answers next time.

Don't get personal, abusive or (too) judgemental in answers, I did once and got reported for it by somebody whose actions I condemned too enthusiastically. Lost 10 points, too. In fact, the person concerned had been a hacker and liar, but they have feelings, too.

I used to answer Questions for ChaCha. Their answer quality has gone downhill though, but it is more reliable than Yahoo answers since the people answering are trained and paid (about 1 cent/question).