dessimat0r

QuizMeister provides social network share functionality for your quiz score (via Twitter, Facebook, etc.) with external media support (via Imgur, Pintrest, YouTube, Vimeo, etc.) on quiz questions, through oEmbed. The format is multiple questions, each with multiple answers. This brings additional value to your WordPress blog or website, which can synergise with your existing content.
For external/social login support (Google, Facebook, etc) we suggest installing another plugin such as WP-OAuth. This functionality -may- be incorporated into later versions. The included template integrated into the plugin for displaying quizzes (but with the ability to be disabled) is most compatible with TwentyFifteen (included with WordPress), but there is the possibility of creating your own overriding template.
Future versions will include bugfixes and feature enhancements.

QuizMeister

QuizMeister allows users to author their own quiz posts with multiple answers per question, providing social sharing features and media embedding.

bauc

WPQuiz allows you to create a quiz (one or more questions/answers) and add it to any post/page using the built-in tags [wpquiz id=?] and [wpquiz_text][/wpquiz_text]. After installing, you can create a new quiz or edit the sample one by accessing it from the admin Dashboard->Settings->WPQuiz. Once you’ve created a quiz there you can easily add it to 
a post/page from the Add/Edit post/page editor’s WPQuiz meta box. The plugin stores its questions/answers in two tables in the database.
The answers are not stored, only checked and shown back to user. Storing and/or giving more feedback is planned for the next release, comments welcome.

WPQuiz

WPQuiz allows you to add a simple quiz/questions to any post/page

QuizMeister vs WPQuiz