>>3 Let's actually go with this. It makes sense, because not all of us can find stuff we don't know in our homes.(We really must've not thought of that part, but hey, keeping this thread, though)
Let's just start with an easy one here, then.
So, what the heck is this? If I gave a hint, I would've blown its cover then. But it's obviously an old device for kitchens.(possible chances of it being used today, anyway)