[The sounds you are hearing will be the final sounds of the project, but will be always used as placeholder sounds for future shared projects that doesn't have final sounds. Yes, this will be used repeatedly for future projects during progress, so it will become old/boring really fast unless I don't use it too much]
C2A (including @RodolfoYT12345 for assets) and credits to @BaseBands for the original sounds of 11 - 11.4, and @PuffBarls968 for the original sound of 20. Guys, I think I'm losing motivation in 2D animating and the Baseblock community (since the "Big numbers" community and 3D animating have been growing in the NB community). :/
