NO WAY. If a dog eats oil then you better take it to the vet
yes
Probably, but it might be okay for cats to eat it because cats can eat fish, and dogs can't usually eat what cats can.
No it will make them sick
Dogs are said to be able eat almost everything, but it is advisable not to feed your dog oily food. The oil can upset a dog's stomach and cause vomiting or diarrhoea, as the oil acts as a lubricant in the digestive system.
They really should get none. It plugs up there arteries.
From personal experience I can say that it must be unflavoured.
No,it is not safe for dogs and cats to have olive oil.
Humus is dirt. You may have meant "hummus", which is ground chickpeas with olive oil and tahini. Dogs don't usually eat dirt. They could probably eat a small quantity of hummus, though it's not especially suited to their nutritional needs so it's probably not appropriate for them to eat a lot of it.
As long as they're ready for solid food it shouldn't cause any harm (after all dogs in the wild eat fish if they can find it) and the fish oil should give their fur a healthy sheen.
Yes, dogs can eat cod in moderation. It is a good source of protein and nutrients for dogs. Just make sure the cod is cooked thoroughly, boneless, and free from any seasonings or additives that may be harmful to dogs.
You need to define the oil. Motor oil - then no. Motor oil can seriously harm the dog's health. Salmon oil or Evening Primrose is another story. A small amount of these oils once a month will help keep the skin supple and help make the hair shiny.
Nothing with hydrogenated oil (h2)