1. Lies are annoying and generally pointless. They either get found out and the consequence of that is worse than if you were just honest about the original screw up in the first place. If I found out my partner had been lying constantly I'd assess whether he really was who I thought he was.
2. Depends. Generally it's fine - I have male friends and it would really be unacceptable to me if my partner told me I couldn't be friends with them. Trust is so important in a relationship and I know that I'm not going to be tempted with any of them - wasn't when I was single, so why would that change now? They're just friends. I think the attitude of that friend towards your partner means the world here. All my male friends I'd be more than happy to go and hang out with my boyfriend! There's NOTHING other than platonic friendship going on.
However there are always going to be exceptions to this - for example, one particular girl my boyfriend knows from a "past life" is quite the trouble maker and I've made it clear I think it unwise to keep her as a part of his or our lives now. He's fine with that and I accept that he also has the ability to judge whether any of my male friends (or female for that matter) shouldn't be a part of our life. But I trust his judgement and he mine, it's not a control issue. I left my ex-husband partly because he thought he had the right to tell me who should be my friend - it wasn't just "hey babe I think that guy has intentions on you, what do you think? do you think you should maybe not talk to him anymore?" it was "YOU WON'T SEE THOSE FRIENDS EVER AGAIN". Sorry no, I'm a reasonable adult not a child. Speak to me like an equal, not an unruly delinquent! I would have been happy to have a reasoned discussion about the issue but an
order? Not acceptable!
3. Porn isn't cheating in my opinion. My partner knows I don't like it so he doesn't watch it at home. Actually I think he mostly doesn't watch it at all anymore but as soon as I told him I didn't like seeing it I never saw it around again - maybe he watches it some other time but I honestly wouldn't know and don't care.
4. Disrespect is not cool and not acceptable (see point 2). When we disagree we still keep it civil and we don't say things we'll regret after. We've both come from past relationships where that line was crossed and I think we've both learned from it!
5. See point 2 again. I don't think snooping or trying to control your partner's life is ever acceptable. If you (general-you, not OP-you) want to know something about your partner's life then ask or let them know how you feel. If you aren't comfortable asking questions or aren't truly content with the answers than you might need to examine the value of remaining in a relationship without trust.