I leave dry cat food out 24/7 for my cat and she eats when she is hungry. Once a day I give her 1/5 of a can of moist cat food. She is a healthy weight.
A Mother cat would normally stop feeding their kittens around 6-8 weeks after giving birth to them, the mother cat would stop feeding them and start to push them off because they grow teeth and bite...
First you fill the bowl with food. When the cat is satisfied with the amount he or she has eaten, it will walk away. That's when you remove the bowl... Just put it up somewhere that the cat can't get...
Calamari is merely fried squid tentacle rings. Other than the oil or spices possibly upsetting the cat's stomach, I see no reason not to occasionally give your cat a little treat from time to time.
Usually right away. Unless if she abandons her motherly duties and neglects them. It happens in some cases, where the milk has to be given to the kittens through a baby bottle.