The term 16-year-old is generally hyphenated when speaking of a person, such as, "The 16-year-old wept." If, however, you are using it in an adjectival way, such as, "The wine was from a 16 year old batch," it is unnecessary.
you call a 16 year old girl a 16 year old girl
it depends on if its a 16 year old boy or 16 year old girl
Not without the permission of the parents of the 16 year old.
The 16 year old has to have parental consent.
No
it is not illegal for a 16 year old and a twenty year old to be together in England
It is not good for a 16 year old to use Viagra so you cannot be prescribed.
Yes, if the 16 year old has parental permission.
Probably the 16 year old, depending on how much he/she has learned. The 5 year old may be more intelligent, or notices things the 16 year old doesn't though. Remember, the 16 year old has had 11 more years to learn.
It is illegal for a 16 year old to date a 28 year old man!
A 16 year old can with parental permission. A 15 year old cannot.
he haves 16 years old