Answer 1

Do you mean the pattern challenges?

Basically, you just print out characters so that they form a figure like a star or a crown. Have a look at the user submissions for inspiration.
Some users created animations with svg or css on sololearn Python playground, for instance, however this does not work on every regular console.

Answer 2

A console only allows for static output. For animations you need create a graphical window, usually with some canvas to draw upon.