Before you buy (and now, as you have bought them) think about potential usage.
Potential usage -> who would use it -> what niche/industry is that -> how lucrative is it/how much do domain names sell for in that area -> rough idea of value (use some tools too)
FoodComa.me
Think about what "food" means, and then "coma" and how they can possibly form any joint meaning. Then also consider that .me sales are usually low value for even highly sought after keywords.
If you cannot think of a basic usage, then neither can others and so likely no-one will want it
LiveHydrated.com
I can see use here, as a brandable or marketing name somehow. I would reach out to the big companies who sell drinks with marketing around "hydrate/hydrated/etc". I'm not saying you'll ever see a sale as while uch names can bring a nice price, they mostly just never sell (or take many years).
LiveHydrated.com has huge potential, a google search reveals four pages of solid relevance, the image search is just as good. Have you heard of Codemology? They take periodical domain name submissions for business development during their Hackathons, it may be worth looking into.
Undeveloped, this name could fetch up to $500 from a person with an idea and some capital.