Question: The Iranian languages or Iranic languages form a branch of the Indo-Iranian languages, which in turn are a branch of the Indo-European language family. The speakers of Iranian languages are known as Iranian peoples. Historical Iranian languages are grouped in three stages: Old Iranian (until 400 BCE), Middle Iranian (400 BCE – 900 CE), and New Iranian (since 900 CE). Of the Old Iranian languages, the better understood and recorded ones are Old Persian (a language of Achaemenid Iran) and Avestan (the language of the Avesta). Middle Iranian languages included Middle Persian (a language of Sassanid Iran), Parthian, and Bactrian.
Try to answer this question if possible: When did the change from old Iranian to new Iranian occur?
Answer: unanswerable
Question: The Dominican Order was affected by a number of elemental influences. Its early members imbued the order with a mysticism and learning. The Europeans of the order embraced ecstatic mysticism on a grand scale and looked to a union with the Creator. The English Dominicans looked for this complete unity as well, but were not so focused on ecstatic experiences. Instead, their goal was to emulate the moral life of Christ more completely. The Dartford nuns were surrounded by all of these legacies, and used them to create something unique. Though they are not called mystics, they are known for their piety toward God and their determination to live lives devoted to, and in emulation of, Him.
Try to answer this question if possible: What group of nuns are used all aspects of the Dominican Order for their work? 
Answer: Dartford
Question: Technologies based upon the polymerase chain reaction (PCR) method will become nearly ubiquitous gold standards of diagnostics of the near future, for several reasons. First, the catalog of infectious agents has grown to the point that virtually all of the significant infectious agents of the human population have been identified. Second, an infectious agent must grow within the human body to cause disease; essentially it must amplify its own nucleic acids in order to cause a disease. This amplification of nucleic acid in infected tissue offers an opportunity to detect the infectious agent by using PCR. Third, the essential tools for directing PCR, primers, are derived from the genomes of infectious agents, and with time those genomes will be known, if they are not already.
Try to answer this question if possible: What are primers excluded by gnomes?
Answer: unanswerable
Question: The network's programming season runs from February until the following March of each year when a retrospective of Oscar-winning and Oscar-nominated movies is shown, called 31 Days of Oscar. As a result of its devoted format to classic feature films, viewers that are interested in tracing the career development of actresses such as Barbara Stanwyck or Greta Garbo or actors like Cary Grant or Humphrey Bogart have the unique opportunity to see most of the films that were made during their careers, from beginning to end. Turner Classic Movies presents many of its features in their original aspect ratio (widescreen or full screen) whenever possible – widescreen films broadcast on TCM are letterboxed on the network's standard definition feed. TCM also regularly presents widescreen presentations of films not available in the format on any home video release.
Try to answer this question if possible: On its standard definition broadcast, what format does TCM use to preserve the original aspect ratio?
Answer:
letterboxed