Three Questions

The Pyrex Question All my life I have been quite confused. My concern is the brand name Pyrex. At the start I was glad, quite enthused. It's clear to me now I'm under a hex. I've searched all the aisles quite in vain. I can find Pyre-X, but I sigh. Do tell me before I'm insane. Where on earth can I find Pyre-Y? The Moses Question I've a friend whose name is a verb. His name isn't Harry or Barney or Herb. His name is short. It's unique. It's sing'lar. His name is Moses, a verb that is reg'lar. I know it's a verb. Just let me prove this.. You conjugate verbs. It's easy. Can't miss. Conjugate thusly: I close and he closes. I see and you saw. I mose and he moses. See? It's a verb. Point proved. QED. There's only one problem. I know lots of words, more words than those. My question is, what is it to mose? The Oral-B Toothbrush Question My mind reels, I have questions, I do wonder: Are they ranked first to last, low to high? Can you find just the best without blunder? I'm not sure how to choose but I try. 1 is better than 2: that we know. D's no good, C's ok (so we say). I have found Oral B ... but oh no! Where oh where can I find Oral A?