There is only one Nightingale bow in Skyrim
Yes, you can obtain the Nightingale Armor again in Skyrim if you lose it. You can do this by returning to the quest "Trinity Restored," where you can speak to Karliah in the Twilight Sepulcher. She will offer you the chance to reclaim the armor if you've lost it, allowing you to reacquire it without having to replay the entire quest.
The weapons featured in skyrim are diverse and include things from swords, daggers, axes, bows, and maces. They can be made from a range of extensive materials, and each class can include dozens of variations.
Yes, you become a Nightingale close to the end of the Thieves Guild questline.
5 large bows.
there are so many weapons on the game of skyrim with different effects and purposes but deadric weapons are the strongest of the lot even with bows the deadric arrows and bow are the best ranged combo on the game but they can only be made from scratch or if your lucky and are a high enough level you will stumble across them one one of your many inventions.
There is no "back" armor in skyrim. However some armors will include a cape, such as the Nightingale armor. There is also a mod on the skyrim nexus called "cloaks of Skyrim" that will allow your character to wear a cloak or cape.
there are 52 bows
No, The Elder Scrolls IV: Oblivion is a middle-age themed fantasy RPG, meaning you can only use sharp, blunt, bows and such weapons that are from the MIDDLE AGE period of time... :) I dunno about Skyrim tho we might use guns in Skyrim :P
Shroud for a Nightingale has 296 pages.
The Nightingale's Song by Robert Timberg has 544 pages.
Florence Nightingale's nickname was " The Lady with the Lamp"
There are many Temples in Skyrim, one in each major city.