Cats normally do not run into things, but on occasion there are cats that are a little more "ditzy" and do run into things. Make sure your cat isn't blind because that may be a reason it is running into things.
Because It's a game to them or they want to get a way from it.
Dogs will chase things that run, that is instinct.
All domestic cats can run up to 30mph. That would be ideal but larger cats such as lions could run up to 40 mph!!
Yes - despite how inert they may appear when napping, cats are definitely living things. (At least until they get run over by a car or expire from disease or old age)
Cats have scent glands on the sides of their chins and the top of their heads, which they use to mark their territory. It is believed that rubbing these glands against things also feels good.
yes
They will run.
As in cats that are male? Yes, cats can be male or female.
Cats may lick walls due to a variety of reasons, including exploring their environment, seeking minerals or nutrients, or displaying abnormal behavior.
There are groups of feral cats but no not really.
Cats have a good memory and can remember things for up to 16 hours.
It could very well run away.