It is recommended you read the actual post on Maple-News.com with all the required links, formatting, and squirrelness. But, in case you haven't seen it (or don't like Maple-News but just want some free crap) here's a bare-bones outline of the events.
EDIT: The Scavenger Hunt and Artwork events have been canceled. The Twitter event is still active. Additional prizes will be rewarded.
Click here to read the full post, otherwise, you can be lazy and look below.