See the link for information, and a contrast with Feminine Rhyme.
The name for alternate rhymes is "alternate rhyme scheme" or "alternate rhyme pattern." This refers to a rhyme scheme where every other line rhymes with each other.
"Slant rhyme," "near rhyme," "off rhyme," "half rhyme" -- those are all terms for the same thing, words that don't rhyme perfectly with each other, but have enough similarity of sound that they can be used as rhymes.
No pin doesn't rhyme with friend. Friend rhymes with trend not with pin...but friend rhymes with pen.. :]
They are end rhymes, so yes, they do rhyme.
They are "end rhymes," meaning that the ends of the words, in this case, "er," rhyme.
Rhyme rhymes with dime and mime. Boss rhymes with dross. Good rhymes with should...
Yes, they are end rhymes of each other.
End rhymes that present a pattern are called rhyme schemes. Common rhyme schemes are AABB (where the first two lines rhyme with each other and the next two lines rhyme with each other), ABAB (where the first and third lines rhyme, and the second and fourth lines rhyme), and AAAA (where all lines rhyme with each other).
A narrative poem's rhyme scheme is aabb or abab.
No, "not" and "are" do not rhyme. Please see the related questions below for "What rhymes with not?" and "What rhymes with are?"
The word sixpence does not rhyme with any other words. Sing a Song of Sixpence is an English nursery rhyme.
That is impossible. They both have the same ending, so any word that rhymes with one will rhyme with the other.