There are just a lot of ways the questions can be worded, and as Orion mentioned, trying to diagnose them to understand how to relate to the questions you already know well can be a very helpful step.
That said, there will always be some questions that come out of “left field” that are very hard to prepare for because they’re different or unique. We have quite of few of these one-off questions as well, but the tricky part is that you can’t really plan for these as well since they are unique… if they followed a more common pattern then they wouldn’t be out of left field. Drilling the techniques will definitely help you draw the connection more easily though even when things seem different on the surface.
If you have any questions or other feedback as you prepare for your next take, please let us know. We’re here to help!