Two short questions...
In which stockpile is glue from bloated tuber stored?
Along with all the other library supplies, glue is considered as a 'tool', by default these are stored in 'Finished Good' stockpiles.
How can i avoid dwarfs to pick up better armor which belongs to their uniform when it comes out of the Forge. For instance when i want to upgrade a new stack of breastplates to platemail before they equip it.
There's no way to stop them from doing this, other than deleting that item from your equips screen, or assigning your militia to a burrow or something else stupid like that. However, this probably actually isn't a bad thing, because afaik, initial quality of a breastplate means nothing when it's upgraded in the armory (not sure about the rune armory, though, haven't used it much), so it would be best to instead use the lower quality breastplates they de-equip than the better quality ones you just made. This goes for weapons, too.
How can I transform beetle honedyew into food? It looks like cookable item from kitchen menu, but prepare meals does not seem to make a use out of it.
Yeah, it is cookable, both before and after brewing it into mead (though cooking booze is probably not the greatest idea ever). The only real consideration when looking for ingredients is distance, although of course you have to have at least one solid ingredient in each meal. Long story short, either put your Farmer's workshop next to your Kitchen, or make a custom stockpile
Anyway, I'm not only here to answer questions, so here goes:
-I was worried about soap production, so I put my kitchen on 'Render fat to tallow' for two years. Now, of course, I've got way too much. I've been using it in Lavish meals, but the stack of ☼tallow cold soup☼ (sounds appetizing, I know) is always inordinately small, usually only 3-4, and never more than ten. This doesn't happen to meals with other ingredients. Why?
-I finally got around to researching a megabeast's kennel and building a slaughterhouse. A long time ago, like in the second year of the fortress, my militia commander killed a centauress, and its corpse was marked as that of a megabeast. I decided to butcher it and revive it at the Kennel. Now it has a name and seems to be a civ member, I guess they're considered to be sentient? Why are they considered MBs? She wasn't tough for one (at the time) relatively unskilled dwarf to kill, and I didn't know she was named until just now. She can be assigned labors, but for some reason Therapist still calls her livestock. She can't however, be put into the military (damn shame, she'd be capable of one-handing everything, in theory). How do I handle this? If she dies, can I resurrect her again?