Automatically subscribe users who take <a href="https://wordpress.org/plugins/watu/" title="Watu Quiz" rel="ugc">Watu Quiz</a> quizzes to your <a href="http://mailchimp.com/" title="MailChimp" rel="nofollow ugc">MailChimp</a> mailing lists. You can choose which quiz to which mailing list connects and also restrict the subscription by the achieved grade.
The plugin allows you to avoid the double-optin email confirmation that’s sent by default by MailChimp. Do this at your own risk: any abuse may cause your MailChimp account banned.
Note that it may take few minutes until your subscribers appear in the list.
Once installed and activated the plugin you will see a link “Watu to MailChimp” under your Watu Quizzes menu.
Identical plugin is available for the Pro version of Watu Quiz.

Watu to MailChimp

A bridge between the Watu Quiz plugin and MailChimp /*** This program is free software: you can redistribute it and/or modify it under the terms of  …

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This plugin lets you create multiple choices quizzes. You display you quiz using a shortcode. 
The result of the quiz is automatically sent to the email specified in your shortcode. 
You have other option like, success_result and show_result if you want to display the the completed quiz to the user.

Watu to MailChimp vs Quick Quiz