First off you should never cut your cuticles only push them back, cutting them could cause damage or infections. Your cuticles grow daily as your nails grow 1/4 an inch everyday.
Yes, unless you have really damaged the nail bed - but this is unlikely.
Yes.
If you lose a great amount of skin, you would be in danger of bleeding to death. Doctors can do a skin transplant.
If the cuticle has not been damaged, then the nail should regrow with time. In the case you describe, the nail might re-grow (the human body is quite resilient) but the nail might have an odd shape or may not be as strong as it was.
According to Jacava.com, cuticle nippers are an essential item for any nail therapistThis is quite correct. Cuticle nippers are used in preparation for any nail treatment. Usually used after the cuticle has been pushed back during a manicure.Professional nail technicians use what's known as cuticle pushers to 'roll back' the cuticle. It is at this stage that we can actually cut off the excess cuticle using the nippers.
it will bleed a lot and probably come back after a while
No, the bones will not grow back. Ever.
yes they will grow back twice as faster
don't know, does it grow back.
Of Course not.
Yes. Tick heads do grow back.
No it will not grow back. Dogs do not have the ability to regrow limbs.
Eyelashes fall out all the time but they will grow back.