So I've got a feeling I'm doing something wrong

Why do you want to relocate? answer is simple - for better life, but I do know that it's not an answer HR want to hear so my answer here - want something new, new challenges\experience, work in international team.

Your last experience? My last project was absolutely annoying with old fashioned technologies. 6 months on support - refactoring\unit tests, absolutely nothing new, so I'm telling about my previous project. (architecture and build process I did with using new technologies) at least it sounds better

Now my top of questions I don't know what to answer:

Why do you want to work in our company? seriously, you've got an open position with visa support and paid relocation.I don't know what to answer on this question but hopefully it's the rare question nowadays.

What is the most valuable criteria for you to choose project to work on? Hell, no idea. In Belarus almost 95% of IT companies are outsource\outstaff oriented so we don't have such questions. But looks like that those questions are in the trend, got them on any interview

Have you ever worked in product-owner companies? No. But really want to. In outstaff you can even sit in product-owner company(your customers), but you are still not their employee

What's going on? Maybe you know good answers for current questions? Or you know how to competently present myself in my situation? Asking for useful tips. I really need help with that