There is a huge difference between the sort of PR crap that companies post on websites and actually sitting down with a human being and have them explain it to you. "What problem is your company solving?" is pretty general, to be fair, but it would be a red flag for a startup that is selling a product but cannot articulate what problem customers have that the product is solving. It is in fact a pretty central differentiator between startups that succeed and startups that fail.

They are all good questions, but you would probably want to say more along the lines of "I understand that X is your companies product. Can you go into some more detail about what specific problems this product is solving for your customers?"