Answer 1

You can use video tag.

<video width="320" height="240" controls>
  <source src="movie.mp4" type="video/mp4">
  <source src="movie.ogg" type="video/ogg">
  Your browser does not support the video tag.
</video>

src is the path to your video.

If you want to add video in solo learn you must upload the video in internet. For that you can choose google drive.

Hope it helps you.