of course
Yes, you can store uncooked grits in the refrigerator.
Yes, it will be fine!
Uncooked chicken should be good 1 - 2 days stored in the refrigerator.
uncooked hams that have been frozen last 6 months or longer.
No, overnight is too long to leave the uncooked roast out. After all, the uncooked roast is essentially decaying flesh of a dead animal. There's no telling what insects might come in contact with the meat and lay eggs.
Uncooked hamburger would spoil if you tried to store it for a month in a refrigerator, so it needs to go in the freezer.
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."
You should store uncooked meats in the bottom drawer of your refrigerator so if juices should leak they will not come in contact with anything else.
4-7 days
No, overnight is too long to leave the uncooked roast out. After all, the uncooked roast is essentially decaying flesh of a dead animal. There's no telling what insects might come in contact with the meat and lay eggs.
An uncooked turkey should be good 1 - 2 days stored in the refrigerator.
Uncooked, for 1 to 2 days. Cooked, for 2 to 3 days.