Offline challenges

I know this is against hacker code…. But I have a laptop running parrot os as the main operating system strictly for HTB challenges, machines, and academy. (Bought it cheap) I take it to work in order to get more familiar with tools and applications included in parrot os during the lunch hour and when I have spare time. I am wanting to up my score on HTB and would like to be able to do some challenges offline and post the flag when I get an internet connection. Is there a list of any challenges that do not require you to spawn a machine or instance? And what challenges would you recommend for a beginner that is just learning how to code? It would be awesome to earn some HTB points and knowledge on company time. Thanks!

you have some easy challenges that all you need to do is just download the necessary files and work from there, but not a lot you can do offline.