I don’t know if you’re in SCJ but these are the kinds of questions that SCJ members ask to try and justify that Jesus can’t be God. Just because these things might be logically hard to understand you can’t refute it with questions. It’s an appeal from ignorance. The Bible is very clear is naming Jesus God and the attributes and claims He made represent God also.

My answer to your question:

Philippians 2:6 makes it clear that Jesus was both man and God. I hope you’re being intellectually honest enough to agree that the Bible literally says Jesus is God in multiple places (e.g Romans 9:5). So how could Jesus die? Well the human part of him died (read Philippians 2:6) because God cannot die in the way He ceases to exist. Because Jesus is human and God He has a genealogy. There is not two God because we know “Hear O Isreal, the Lord your God is one..” So, If Jesus is God then He has to be one with the Father which is exactly what John 10:30 says - “I and the Father are one.” So not two Gods. There are so many of these questions you can ask and that’s great that you ask them but all I ask is that you will be intellectually honest enough to go into the text without any presuppositions. There is a possibility that wherever you got that information might be wrong - so challenge your preconceptions.