Compendium(s) of Elementary Mathematical Truths

Garrity's All the Mathematics You Missed But Need to Know for Graduate School seems to be what you are looking for. It covers everything you listed and more!


More wordy that what you're asking for, but maybe very useable until something more spot-on shows up: Math Reference Project http://www.mathreference.com/main.html

edit: Also, somewhat tangential to what you are asking for, but perhaps still germane, is the following website with a long list of (standard? / famous?) problems: http://www.mathproblems.info/