I am a beginner and would like to work on small questions/challenges. So any suggested websites or apps?

Answer 1

https://www.codecademy.com/learn/web
I can tell you how I learned. I did a lot of sites, my only negative that I do not gradually completed. One should always do before the end of the project, and then the result will be better than that of a few lines of code.
The second method of studying is "Do-I Do not Know-looking." Do the site, and adds something new, for example, you wanted to make a link, wrote in Google, and immediately recorded somewhere in the book, because I learned html 2 hours, but forgot it after these 2 hours. If you want, I can somehow send the job to you, because I am from Ukraine and Russian sites are so many interesting and challenging tasks.

Answer 2

thanks alex