collection of videos / lengths vary / languages vary

Puzzling videos are a conceptual approach to both puzzles and the video format. The result, puzzle videos, are what their name implies: Puzzles, in video form.

You can download all the tools needed (a script to help you sorting and some cheats), plus the links to all puzzle videos available so far, here. You can extract the frames from the files yourself by using ffmpeg, DaVinci Resolve or Media Encoder (whatever your prefer), or ask me personally to upload them for you.