based on the multimovie filter, i made an embed question (in preview mode) from question's bank
using a customized iframe window anywhere in and resource or activity.

it's basic but it works nicely

just uncompress the attached file and copy the files to their respective folders in moodle's folder tree
and you are good to go

here are the usage instructions:

// This filter allows you to display a single question from
// the "question bank".
//
// Syntax for videos is:
// [[q:course_id:question_id:height:width|title]]
// where:
// q: acronym of "question", must be always present.
// course_id: you can see it when you hover with the mouse pointer over the
// question's preview icon in the quesion bank page.
// question_id: you can see it when you hover with the mouse pointer over the
// question's preview icon in the quesion bank page.
// height : height of the frame that is embeded inside the resource's page.
// width : width of the frame that is embeded inside the resource's page.
// title: free text to be displayed before the quesiotn's frame
//