Should sex and violence on television or in the movies be restricted?

I think they are fine the way they are now. Having ratings on the movies and warnings before the show. It's like, you have a warning and everything, you can decide if you want to watch it or if you want your kids to watch it or anything like that. You have the power in the situation. If you don't think your kids can handle the violence or the sex appeal, don't let them watch it. They don't need to be "restricted", you just have to have the brain smarts to make a decision.

Should mandatory (or voluntary) prayer be permitted in public schools?

Yes. The school is public for a reason. Don't want a particular religion there? Become a private school.

Should bartenders be held responsible for the behavior of their patrons?

Absolutely not. Just like the tobacco use. It's not the bartender's job to babysit their patrons. They can limit the amount of alcohol someone consumes. If a patron is getting too rowdy and completely drunk, the bartender can refuse to serve them, but they're not responsible for the person's behavior. A bartender is not a babysitter.

Should tobacco companies be held responsible for smoking-related illnesses and deaths?

Not at all. If you smoke or chew tobacco, you're making that choice. It says right on the side of all tobacco products "Surgeon General's Warning: Smoking May Be Hazardous To Your Health"
Seriously, people who smoke know what they're doing to themselves. Tobacco companies are only doing their job. It's the people's decision if they use the products or not.

Should surrogate motherhood be either banned or regulated be law?

No. Honestly, I think this is dumb question. I know "there's no such thing as a stupid question", but this one could rank as one. If a couple can't get pregnant, for whatever reason, sometimes a surrogate mother is the only shot they have at having a child of their own. Of course, there's always adoption, but some people want a baby of their own so badly. A surrogate mother is the only way sometimes. Why in God's name would you ban the right to have your own child?

What types of regulations of smoking in public places should the legal system impose?

Okay, seriously? I mean, what we have now is alright. I'm not a smoker, but I have a lot of friends and family who smoke. I'm comfortable around it, but I can understand how some people could be bothered by it.
If you're in an environment, though, that is kinda meant for smoking, like a bar or outside, complaining about it is kind of pointless. Granted a bar can have a smoking section and so can certain places outside, but why should there be? Those are like the only places now where it's acceptable. I mean, restaurants have even wiped out smoking sections.
I'm not trying to advocate for smoking, but I have nothing against it, really. Just leave the bars and outdoors alone.

Should newspaper reporters be required to reveal their sources?

If they are asked to, yes. I'm not expecting them to have a bibliography at the end of their article, but if they get asked where they got their information, they should be required to tell.