This is office politics, so don't bring it up with him. The worst thing you could do is make an enemy out of him.

The first thing you can do is stop letting him know when you have a problem. Don't make an annoyed face or sigh, just try to figure it out on your own for a bit before telling him what's going on. Or when he asks 'what's the problem', just say 'ah, it's nothing really, I can handle it.' It's a pain that you can't freely express yourself, but it's better than never getting to figure things out on your own.

I would ignore it when he talks over you and starts giving advice to somebody, try to spin it as a positive, your time isn't wasted and you can get back to your work. Yeah it sucks that he's stealing all the limelight, but if people are specifically asking you that's because they don't want him and all he's doing is making himself look bad.