The following text tells an English word by describing each of its letters (in individual sentences).
What's the answer to this question?
&I'm the difference between 7 and even. A dash between two vertical bars. Up-left, Up-right and straight down.;
Hint 1 (Updated):
There are two answers: One obvious one and one obscure one. The obvious one is a 3-letter word (correctly answered), and the obscure one is a 3-digit number.
The obvious one isn't quite hard, but
What does the leading and the trailing punctuation marks do? (after replacing sentences with the letters they describe)
combine with the above one:
What is this question's tag?
You might need some programming skills to figure out the obscure answer.