The problem: Answer a question about this article:
In this paper, he described a new system for storing and working with large databases. Instead of records being stored in some sort of linked list of free-form records as in CODASYL, Codd's idea was to use a "table" of fixed-length records, with each table used for a different type of entity. A linked-list system would be very inefficient when storing "sparse" databases where some of the data for any one record could be left empty. The relational model solved this by splitting the data into a series of normalized tables (or relations), with optional elements being moved out of the main table to where they would take up room only if needed. Data may be freely inserted, deleted and edited in these tables, with the DBMS doing whatever maintenance needed to present a table view to the application/user.
What system assists a user in seeing a table?
****
The answer: DBMS

The problem: Answer a question about this article:
In 2012 the Paris agglomeration (urban area) counted 28,800 people without a fixed residence, an increase of 84 percent since 2001; it represents 43 percent of the homeless in all of France. Forty-one percent were women, and 29 percent were accompanied by children. Fifty-six percent of the homeless were born outside France, the largest number coming from Africa and Eastern Europe. The city of Paris has sixty homeless shelters, called Centres d'hebergement et de reinsertion sociale or CHRS, which are funded by the city and operated by private charities and associations.
What percentage of homeless people are women?
****
The answer: 43

The problem: Answer a question about this article:
Deism holds that God is wholly transcendent: God exists, but does not intervene in the world beyond what was necessary to create it. In this view, God is not anthropomorphic, and neither answers prayers nor produces miracles. Common in Deism is a belief that God has no interest in humanity and may not even be aware of humanity. Pandeism and Panendeism, respectively, combine Deism with the Pantheistic or Panentheistic beliefs. Pandeism is proposed to explain as to Deism why God would create a universe and then abandon it, and as to Pantheism, the origin and purpose of the universe.
In deism is God represented in human form?
****
The answer: God is not anthropomorphic

The problem: Answer a question about this article:
Models suggest that Neptune's troposphere is banded by clouds of varying compositions depending on altitude. The upper-level clouds lie at pressures below one bar, where the temperature is suitable for methane to condense. For pressures between one and five bars (100 and 500 kPa), clouds of ammonia and hydrogen sulfide are thought to form. Above a pressure of five bars, the clouds may consist of ammonia, ammonium sulfide, hydrogen sulfide and water. Deeper clouds of water ice should be found at pressures of about 50 bars (5.0 MPa), where the temperature reaches 273 K (0 C). Underneath, clouds of ammonia and hydrogen sulfide may be found.
What clouds form between one and five bars on Neptune?
****
The answer:
ammonia and hydrogen sulfide