Create a simple quiz for each video I have a "video" content type, and I want from users watching my videos to answer some questions related to each single video.

Can you advice me, how can I create a quiz for each single video content ?
Is there a module (I tried the quiz module but it's very complicated) to do that, or any other way will be apprecited.

thanks in advance.
You can use the Webform module to create a quiz.
Here is a quote about it (from the module's project page):

Webform is the module for making surveys in Drupal. After a submission, users may be sent an e-mail &quot;receipt&quot; as well as sending a notification to administrators. Results can be exported into Excel or other spreadsheet applications. Webform also provides some basic statistical review and has and extensive API for expanding its features.
Some good examples could be contests, personalized contact forms, or petitions. Each of these could have a customized form for end-users to fill out. If you need to build a lot of customized, one-off forms, Webform is a more suitable solution than creating content types and using CCK or Field module.