No
No.
No. Stew left out overnight would not be safe to eat, covered or not - unless where it was left out was as cold as a refrigerator.
Yes, that is safe. Your muffin may get stale, but it is not dangerous to eat after being left out overnight.
Beacause you will poop to much because it is stale
For food safety purposes, it is best to store it covered in the refrigerator, not left out.
Well its easy really the air gets in it then goes stale and the water evaporates and then goes hard.
When marinating ribs....they should be left in refrigerator in marinade no longer than 48 hours as a rule.
No. You should not leave turkey unrefrigerated overnight. When you leave food at room temperature, bacteria grow more rapidly. It is safer to keep cooked food in the refrigerator to avoid food poisoning.
If the corn dogs were left out on the kitchen counter overnight, most likely the meat would contain harmful bacteria and they should be tossed out. If they were left overnight to defrost in the refrigerator, they would still be safe to eat.
If you are talking about uncooked ears of corn that were left out of the refrigerator overnight, some of the sugars have probably changed to starches so it won't be so sweet. But it should be OK to cook up and eat. If you are talking about cooked corn that someone forgot to put away, the answer is "No. You should not eat cooked corn left out overnight."
It means bread that is dry and slightly stale, which is usually several days old. If you need stale bread (for stuffing, for example) and you don't have any, leaving it uncovered overnight is a good way to 'stale' it.
We can't answer that here. The only way for you to know if it is safe is if you checked the temperature of the food with a thermometer. You'll have to make that decision yourself.