Yes, it should still be safe to eat.
A potato left too long will turn brown, but it will make nice hash browns for breakfast. A RAW, peeled potato with change color if exposed to air. Do not eat a cooked potato that has been sitting in room temperature over night!
Yes, of course. It is still cheese, it's just shredded.
It might be good if you just made it that night. But if it was made a couple of days ago it may not be good any more. Just to be sure that it will still be good by the next day try to get it in the fridge! You are welcome for this answer!
NO
Potato
plant it
Yes
yes they do, I bought some last month
I dkk
Elephant it is still in the fridge
no
Yes. It can go in the fridge now. It should go into the fridge within 2 hours or less of being removed from the heat. Separate it into smaller pieces to help it cool faster.