Input: Read this: Glass has the ability to refract, reflect, and transmit light following geometrical optics, without scattering it. It is used in the manufacture of lenses and windows. Common glass has a refraction index around 1.5. This may be modified by adding low-density materials such as boron, which lowers the index of refraction (see crown glass), or increased (to as much as 1.8) with high-density materials such as (classically) lead oxide (see flint glass and lead glass), or in modern uses, less toxic oxides of zirconium, titanium, or barium. These high-index glasses (inaccurately known as "crystal" when used in glass vessels) cause more chromatic dispersion of light, and are prized for their diamond-like optical properties.
Question: What is a toxic additive that increases refraction?

Output: lead oxide

QUES: Brain areas involved in the neuroanatomy of memory such as the hippocampus, the amygdala, the striatum, or the mammillary bodies are thought to be involved in specific types of memory. For example, the hippocampus is believed to be involved in spatial learning and declarative learning, while the amygdala is thought to be involved in emotional memory. Damage to certain areas in patients and animal models and subsequent memory deficits is a primary source of information. However, rather than implicating a specific area, it could be that damage to adjacent areas, or to a pathway traveling through the area is actually responsible for the observed deficit. Further, it is not sufficient to describe memory, and its counterpart, learning, as solely dependent on specific brain regions. Learning and memory are attributed to changes in neuronal synapses, thought to be mediated by long-term potentiation and long-term depression.

What changes can be linked to learning and memory?
What is the answer?
ANS: neuronal synapses,

QUES: As of 2009, dial up, wireless and satellite services were available. Dial up internet services in Somalia were among the fastest growing on the continent, with an annual landline growth rate of over 12.5%. The increase in usage was largely due to innovative policy initiatives adopted by the various Somali telecom operators, including free local in-town calls, a flat rate of $10 per month for unlimited calls, a low charge of $0.005 per minute for Internet connections, and a one-time connection fee of $50. Global Internet Company, a firm jointly owned by the major Somali telecommunication networks Hormuud Telecom, Telcom Somalia and Nationlink, was the country's largest ISP. It was at the time the only provider of dial up services in Somalia's south-central regions. In the northern Puntland and Somaliland regions, online networks offered internet dial up services to their own group of subscribers. Among these firms was Golis Telecom Somalia in the northeast and Telesom in the northwest.
Who was the first ISP provider in Somalia?

ANS: unanswerable

In 2002, IBM acquired PwC consulting. In 2003 it initiated a project to redefine company values. Using its Jam technology, it hosted a three-day Internet-based online discussion of key business issues with 50,000 employees. Results were data mined with sophisticated text analysis software (eClassifier) for common themes. Three emerged, expressed as: "Dedication to every client's success", "Innovation that mattersfor our company and for the world", and "Trust and personal responsibility in all relationships". Another three-day Jam took place in 2004, with 52,000 employees discussing ways to implement company values in practice.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many employees worked at PwC consulting in 2002?
Ah, so.. unanswerable

Question: As a result of the Libyan Civil War, the United Nations enacted United Nations Security Council Resolution 1973, which imposed a no-fly zone over Libya, and the protection of civilians from the forces of Muammar Gaddafi. The United States, along with Britain, France and several other nations, committed a coalition force against Gaddafi's forces. On 19 March, the first U.S. action was taken when 114 Tomahawk missiles launched by US and UK warships destroyed shoreline air defenses of the Gaddafi regime. The U.S. continued to play a major role in Operation Unified Protector, the NATO-directed mission that eventually incorporated all of the military coalition's actions in the theater. Throughout the conflict however, the U.S. maintained it was playing a supporting role only and was following the UN mandate to protect civilians, while the real conflict was between Gaddafi's loyalists and Libyan rebels fighting to depose him. During the conflict, American drones were also deployed.
Try to answer this question if possible: The Libyan conflict was primarily fought between which groups?
Answer: Gaddafi's loyalists and Libyan rebels fighting to depose him

Question: The best-known medieval Chinese name for Tibet is Tubo (Chinese: also written as or ; pinyin: Tubo or Tufan). This name first appears in Chinese characters as in the 7th century (Li Tai) and as in the 10th-century (Old Book of Tang describing 608609 emissaries from Tibetan King Namri Songtsen to Emperor Yang of Sui). In the Middle Chinese spoken during that period, as reconstructed by William H. Baxter, was pronounced thux-phjon and was pronounced thux-pjon (with the x representing tone).
Try to answer this question if possible: What did Baxter H. William reconstruct?
Answer:
unanswerable