For most dishes you can, yes.
According to the USDA, once food is thawed in the refrigerator, it is safe to refreeze it without cooking, although there may be a loss of quality due to the moisture lost through defrosting. After cooking raw foods which were previously frozen, it is safe to freeze the cooked foods. No, you should not refreeze meat once it has been thawed.
Yes, you shouldn't have any problem with this. I don't think I'd do it if the spaghetti sauce was made with clams or poultry but if it's vegetarian or beef-based, you should be fine.
You should never refreeze a thawed smoked turkey. However, once you cook a thawed turkey, you can freeze the meat.
can I refreeze cooked stuffed cabbage
yes
yes
No, it is not safe to refreeze any meat once it has thawed, however if you cook it you can then freeze it again.
It was too warm for the ice to refreeze. One the meat had thawed, they did not think it would be safe to refreeze it.
yes
Yes. It is preferable over trying to refreeze raw thawed chicken.
Yes, you can, but not too many times.
Not if it is raw and has been fully thawed. You can cook it and then refreeze it. Put it in an air tight container.