They will eat it. It should not be the only food they get as it will not meet their nutritional needs. You can also feed them raw rice. Rice is a grain and grains are what chickens prefer. A good mix of grain or a commercial chicken feed is best as a main diet.
Yes, you can, but after that you must dry it and prefferably cut it up.
The same as other laying hens - layer feed, preferrably organic crumbles.
If you mean meat, then no.
Hens can eat most cooked vegetables. Stay away from onions these tend to disagree with the bird.
No, but if cooked right you can get nice crispy chicken skin.
some milk
Yes, the drumstick is the name given to the thigh of a 'cooked' bird.
maybe i dont know
Grammatical issues, aside, I presume you meant RHODE Island red hens (there's no such thing as LONG Island red hens), which live about five years, the same as any other domesticated chicken.
While some farms feed their hens meat from other chickens, many do not. Cooking the meat reduces the chance of pathogens infecting the flock from sick birds but hens will eat cooked or raw flesh of any sort. Chickens are omnivores and will eat bugs and small rodents, feeding them members of their own flock just seems wrong so many farms do not practice this form of protein supplement. Most good chicken feed already has plenty of protein included.
Our roosters eat the same feed as the hens. It is a basic ration for egg laying poultry purchased up at the tractor supply. They also get veggie and salad scraps from the kitchen. They don't mind getting into my garden and eating my greens and strawberries either.
ducky farm