This article describes the daily limit for voting on Answers.

New users to Yahoo! Answers start with five questions they can ask and 20 answers they can give every day. It's been designed this way so they can learn more about using this service before being unlimited in the number of questions and answers they can post.

As you reach a new level, you can ask and answer more questions each day, comment, star, rate and vote more. Check out our Points and Levels page for more details.