HTML Entity for DASH

Answer 1

I'm not sure there is one, but if there is, it's probably in this chart http://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references

Answer 2

This should do it. It's not listed as a dash, you need to find a place that lists it as the minus sign.

Code block shows code:

-

In use: - (-)
Double: -- (--)

EDIT: My source for this answer.