Quick question - I understand why ethanol is soluble in water, because it can form hydrogen bonds, but why is it also soluble in benzene, a nonpolar solvent?

Answer 1

The ethyl group has enough of the non-polar characteristics (like dissolves in like) to be similar to benzene. See this summary at the top of the link and see other links below the summary.
https://www.google.com/search?q=ethanol+solubility+inh+benzene&ie=utf-8&oe=utf-8&client=firefox-b-1