When I drink water I like to chug it, and its difficult to chug things when they're cold. So I like my water room temperature, but no warmer than that. So yes I drink warm water from the tap.
Seen. It just glides easier down the throat when it's warm.
Room temperature tap water. Don't know if I would call it "warm". When I think warm, I think a few steps above hot. I don't especially enjoy ice cold water(but it's still fine). Even back when I drank soda, I didn't put ice or anything in it. It was always cold enough from the fridge.
Fun fact: at one of the places I stayed when I was in India, they had 2 different things of bottled water in the lobby, room temp and refrigerated. The cold water was for the tourists - locals preferred the warm because (as I was told) they thought colder water might make you more likely to get sick. At the very least, they weren't as accustomed to cold water they way all the westerners were so it wasn't as important to them, despite it being Balls Hot outside.