Imagine is a simple picture puzzle engine that allows you to puzzle with basically any picture (supported formats BMP, JPEG and PNG).
Due to the underlying JCR5 engine (http://jcr5.sourceforge.net), it's easy to make bundles of pictures to swap with friends or over the internet. (Please respect people's copyrights when you do so!!!)
Imagine has a simple language engine implemented and comes initially in both English and Dutch, but translations in more languages (maybe yours) are possible.