And it is such a fantastic resource to learn! You want to get into puzzles like they do on the channel? Just open a video, pause it, and click the link in the description. Stare at the puzzle, trying to figure it out. The first time you do this, you probably won't. Once you lose patience (but give yourself some time!), watch the video until Simon or Mark get to the first deduction and explain it. Pause the video again, and try to continue using your new knowledge. When you get stuck again, what (or skim) through the video until they do enter a deduction that you have not found. Rinse and repeat.
Do this a couple of times with different videos, and you will start to build a repertoire of techniques yourself. At some point, you will be capable of solving puzzles on your own. (And if you get stuck, the video is there to help you.)
Normally I get a bit tired or skip ahead when technical topics or gameplay centered strategies are explained over and over again on the same channel, but I can watch them prove the Phistomefel ring or break down the logic on disqualifying candidates with their shaders every time.
I love the feeling of finding the beauty of how a puzzle resolves. The hand set puzzles are as much a challenge to player as they are a demonstration of the setter's own skill and cleverness.
Do this a couple of times with different videos, and you will start to build a repertoire of techniques yourself. At some point, you will be capable of solving puzzles on your own. (And if you get stuck, the video is there to help you.)