Learn git common problems and handy commands and becomea git master. This is the git challenge.the git challenge is a series of git problems that I have designed to help you grow your knowledge in steps where each step represents a problem that you might face everyday in life while developing software with git.
The git challenges cover the following topics:
0:00 Intro
1:05 Setup challenges
2:13 Git - Find local changes.
3:55 Git - Find the differences between branches.
5:07 Git - Edit a commit message
6:27 Git - Undo the local commits
8:48 Git - Merge conflicts.
10:51 Git - Remove a file from git commit
11:49 Git - Revert to older commits.
13:11 Git - Revert specific files to older commits.
14:23 Git - Share the credit of the commit with a cooperator.
15:17 Git - Design your own challenge.

You can clone this repo
https://github.com/nos111/git-challenge
and follow the setup page if you want to code along with this challenge.
Each one of these challenges has its own chapter in this video so you can easily scroll to it using the video timeline.

Sources:
https://github.com/nos111/git-challenge