Does he have brown eyes?
(have) Yes, he has brown eyes.
Does it have two arms?
No, it has four arms/ no, it doesn't have two arms.
Does she have a long hair?
She doesn't have a long hair.
Does he have muscles?
Yes, he has muscles.
Does it have two eyes?
No, it has three eyes/ No, it doesn't have two eyes.
Don't they have three eyes?
No, they have two eyes/ No, they don't have three eyes.
Doesn't she have a blond hair?
(have) Yes, she has a blond hair.
Does he have a small nose?
(have/not) He doesn't have a small nose.
Does he have two legs?
No, he has one leg/ No, he doesn't have two legs.