First one to get it gets 10 points?

Question

Eight and five, last name and given,
We are one six six six even;
The first in cow, the last in oxen
Three in damsel, three in vixen.

Question: What are we called?

Answer 1

roman numerals

The last name has eight letters (NUMERALS) while the first or given name has five (ROMAN).

Using each of the numerals once gives MDCLXVI, which is 1,666.

C ( which is found in Cow) is first of the seven in the alphabet while X ( which is found in oXen) is last.

Three of seven are found in DaMseL. Three are also found in VIXen.

Explanation of the hint:

I is the only one of five vowels among the seven Roman numerals.

C is found in Cat, M and I in MItten.

I and V are odd numbers. The rest are even numbers.

There are seven Roman numerals. One of them is found in seVen (the V).

Answer 2

Letters

Answer 3

leters of the alphabet

Answer 4

wow...