There's nothing 'good' about idiotic questions designed to split people off into imaginary groups.
Why are you on a personality forum, then?
Practically all personality theories are designed in a way that separates certain types of people from other types of people.
The question is as simple as does one prefer to constantly learn new things, or do they prefer to stick to what they know. It is that simple and anybody with even the slightest reading comprehension capabilities would be able to deduce such a fact.
The two ideas do oppose each other - one is preferring to learn new things, the other is preferring to stick to what you know.
Of course, people can stick to what they know
and learn new things, nothing is to stop you from being a level 110 Death Knight and also learning multiple languages and various other skills, the idea, as any reasonable person would understand, is to select which is
preferred - to master and refine your existing skill set, or to learn new things.
Learning new things can of course be incorporated into mastering and refining your existing skills, and refining existing skills does not necessarily mean you will ever master or even get remotely "good" at them if you're just hopeless, but the intent behind the question remains very clear and indeed to two phrases are indeed opposing in nature even if they can and should ultimately work together for the benefit of the respondent. Neither phrase excludes the existence of the other phrase in the respondents life.
To provide something a little more specific, something that someone of your intellect might be able to comprehend in a way that at least resembles anything accurate - consider this, would you prefer to listen to new music (new songs, new bands, new styles, just new - something different), or would you prefer to listen to a song, or an album, or a band, or a genre etc that you already know and are comfortable with.
Yes there are many ways to question this example - new music from a familiar artist etc etc but surely you are able to grasp what the question is asking now, and understand the opposing nature of each perspective.
If you have trouble understanding this, not my problem, I've done all I can.