You usually can’t, because eyes and ass are on opposite sides. But if you get creative, it is possible.

Probably not. I don’t think farts have the right kind of moisture content, the way your exhalations do. We would have more jokes about that if it were a thing.

Yes you can.

Source: Let’s just say that I used to live in a country that held ice skating events between eleven cities and when they do, it’s fricking cold.

Never seen one.