The best replacement for answers is quora.

The best alternatives to answers are rated as following:
★★★★★  quora
★★★★★  yahoo answers
★★★  questions
★★★  google answers
★★  answer
★★  bi publisher
★★  logo quiz
★★  wikianswers
★★  answers.com
★  answerbag
★  icomania
★  impossible quiz
★  estimates
★  votes

Your alternative for answers is not listed? Suggest!
Speaking about answers, one probably shouldn't forget about questions.

Other search terms related to answers and their ratings are:
★★★★★ questions
★ riddles
★ asking questions
★ math
★ work math
★ clues
★ survey
no questions
You have in mind a companion for answers and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of answers in all years. Click on graph for more.
answers
quora
yahoo answers