Problem: In heartwood it occurs only in the first and last forms. Wood that is thoroughly air-dried retains 8–16% of the water in the cell walls, and none, or practically none, in the other forms. Even oven-dried wood retains a small percentage of moisture, but for all except chemical purposes, may be considered absolutely dry.
Air-dried wood keeps up to what percentage of the water in its cell walls?
The answer is the following: 16

Problem: Improved sanitation in the developing world is a global need, but a neglected priority as shown by the data collected by the Joint Monitoring Programme for Water Supply and Sanitation (JMP) of UNICEF and WHO. This program is tasked to monitor progress towards the Millennium Development Goal (MDG) relating to drinking water and sanitation. About one billion people have no sanitation facility whatsoever and continue to defecate in gutters, behind bushes or in open water bodies, with no dignity or privacy - which is called open defecation and which poses significant health risks. India is the country with the highest number of people practicing open defecation: around 600 million people. India has also become a focus country for the foundation's sanitation activities which has become evident since the "Reinvent the Toilet Fair" in Delhi, India in March 2014.
What does data collected by unicef and Who show
The answer is the following: Improved sanitation in the developing world is a global need, but a neglected priority as shown by the data collected

Problem: The writers of Grub Street, the Grub Street Hacks, were left feeling bitter about the relative success of the men of letters, and found an outlet for their literature which was typified by the libelle. Written mostly in the form of pamphlets, the libelles "slandered the court, the Church, the aristocracy, the academies, the salons, everything elevated and respectable, including the monarchy itself". Le Gazetier cuirassé by Charles Théveneau de Morande was a prototype of the genre. It was Grub Street literature that was most read by the public during the Enlightenment. More importantly, according to Darnton, the Grub Street hacks inherited the "revolutionary spirit" once displayed by the philosophes, and paved the way for the French Revolution by desacralizing figures of political, moral and religious authority in France.
What term was given to the writers of Grub Street?
The answer is the following: the Grub Street Hacks

Problem: The Mark 1 in turn quickly became the prototype for the Ferranti Mark 1, the world's first commercially available general-purpose computer. Built by Ferranti, it was delivered to the University of Manchester in February 1951. At least seven of these later machines were delivered between 1953 and 1957, one of them to Shell labs in Amsterdam. In October 1947, the directors of British catering company J. Lyons & Company decided to take an active role in promoting the commercial development of computers. The LEO I computer became operational in April 1951  and ran the world's first regular routine office computer job.
Where was the Ferranti Mark 1 sent to after it was developed?
The answer is the following:
University of Manchester