To which side of the stone was safe for the Frisby house to be moved?

The lee/leeward side.

Why did the other birds regret drinking from and swimming in the spring when they sought out the eagle's assistance against the current invaders?

It turned out to be partly, if not entirely, made of Mighty Eagle's urine as the eagle would pee in it from the ledge at the entrance to his nest/home.

Lol. Unfortunately, that's where the fire dies because I generally choose to not look up the answers to "trivia" when it's a sort of contest.
XD

I actually remembered the Frisby one from grade school. XD
But Derpy is a great help with trivia.

yaay, thanks!

also I've read all the Rachel Morgan books too:D

Lol. It's because I read faster silently than the kids in class could out loud, so I was always several pages ahead and getting in trouble for not being on the right page. And my anxiety makes me relive the horrors of public embarrassments from my past all the time.
XD

Lol. My anxiety is finally a power for good!

Ooh yeah I was faster as a quiet reader than my classmates out loud
Fortunately the teacher didn't call me out in public, the one who did catch me

Discounting Dyson spheres, or other alien interference, what is the going theory for the dimming of Boyajian's star?

SPACE DUST! Although I did like the alien megastructure theory.

On what historical figure is Dracula popularly believed to be based?

Vlad III, or Vlad “the Impaler”, of course.

How are birds and cogwheels related?

Uhhhh hrrgkhh I was gonna say they both have teeth, but birds... don’t have... teeth...

Anyways my bullshit answer is, they both have parts that mesh with each other; for example, gear teeth mesh with other gear teeth, while the barbules of a single barb on a bird’s feather mesh with the barbules of the barb next to it (which is why feathers hold together like that; it works like velcro.)