Yes, some of them. Watson, or something like it, could certainly answer the majority of the questions asked here at Philosophy.SE
This is the highest scoring answer on this site, and it "works" by recognising the asker's topic and then providing two Jepody-like answers: "what is Intuitionism?", "what is Platonism?" with their definitions. It's exactly the kind of problem an expert system is good at solving.
An expert system will probably perform quite well with the scholarship of philosophy, knowing who said what and putting ideas in the context of others. This is a big part of philosophy, more so than most other academic disciplines. But a Watson-like AI would probably struggle to articulate philosophy that humans would consider truly novel.
Then again, as Mark Twain is said to have said:
There is no such thing as a new idea. It is impossible. We simply take
a lot of old ideas and put them into a sort of mental kaleidoscope. We
give them a turn and they make new and curious combinations. We keep
on turning and making new combinations indefinitely; but they are the
same old pieces of colored glass that have been in use through all the
A Watson-like AI might surprise us!