Question: The concept of a group arose from the study of polynomial equations, starting with Évariste Galois in the 1830s. After contributions from other fields such as number theory and geometry, the group notion was generalized and firmly established around 1870. Modern group theory—an active mathematical discipline—studies groups in their own right.a[›] To explore groups, mathematicians have devised various notions to break groups into smaller, better-understandable pieces, such as subgroups, quotient groups and simple groups. In addition to their abstract properties, group theorists also study the different ways in which a group can be expressed concretely (its group representations), both from a theoretical and a computational point of view. A theory has been developed for finite groups, which culminated with the classification of finite simple groups announced in 1983.aa[›] Since the mid-1980s, geometric group theory, which studies finitely generated groups as geometric objects, has become a particularly active area in group theory.
Try to answer this question if possible: Where did the idea of a group come from?
Answer: the study of polynomial equations,
Question: Like many older east coast cities after World War II, Atlantic City became plagued with poverty, crime, corruption, and general economic decline in the mid-to-late 20th century. The neighborhood known as the "Inlet" became particularly impoverished. The reasons for the resort's decline were multi-layered. First of all, the automobile became more readily available to many Americans after the war. Atlantic City had initially relied upon visitors coming by train and staying for a couple of weeks. The car allowed them to come and go as they pleased, and many people would spend only a few days, rather than weeks. Also, the advent of suburbia played a huge role. With many families moving to their own private houses, luxuries such as home air conditioning and swimming pools diminished their interest in flocking to the luxury beach resorts during the hot summer. But perhaps the biggest factor in the decline in Atlantic City's popularity came from cheap, fast jet service to other premier resorts, such as Miami Beach and the Bahamas.
Try to answer this question if possible: After the war, what form of transportation became more readily available to many Americans?
Answer: automobile
Question: The variances in nomenclature in the region spanned by the Alps makes classification of the mountains and subregions difficult, but a general classification is that of the Eastern Alps and Western Alps with the divide between the two occurring in eastern Switzerland according to geologist Stefan Schmid, near the Splügen Pass.
Try to answer this question if possible: What makes the classification of the mountains and subregions difficult?
Answer: The variances in nomenclature
Question: BeiDou-1 is an experimental regional navigation system, which consists of four satellites (three working satellites and one backup satellite). The satellites themselves were based on the Chinese DFH-3 geostationary communications satellite and had a launch weight of 1,000 kilograms (2,200 pounds) each.
Try to answer this question if possible: The launch weight of what was over 3,000 pounds? 
Answer:
unanswerable