1. Why didn't Ink's eyes get cloudy like other zombies? Actually, scratch that. The real question I'd love a definitive answer to is this: Was Ink an actual zombie? If so, I'd like the answer to my first question, please.
2. Why was Ink so obsessed with the experiments? I understand the idea of responding to threats but hiding would've prevented more threats than attacking would have. No one would've been after him.
3. What happened to all the other special zombies that were around in the first season? Smart ones, jumpers, runners, etc. As I understand it their gifts were simply the result of human abilities but the only special ones we see later on were Ink's pets.
4. Is the title of the series a nod to the zombies being alive or the humans?
5. Were the zombies alive? If so, was the whole procreation idea valid? Could little ones reproduce? (Three in one, sorry.)

That's all I can think of at the moment but I'm sure there are some that I'm missing.