Problem: Malaria kills more residents; 9% of the population have reported infection, It causes three times as many deaths as AIDS. In 2008, fewer than half of children younger than five slept under antimalaria nets or had access to antimalarial drugs.
What percentage of the population has Malaria?
The answer is the following: 9%

Problem: In the paper "Who's Gay? Does It Matter?", Ritch Savin-Williams proposes two different approaches to assessing sexual orientation until well positioned and psychometrically sound and tested definitions are developed that would allow research to reliably identify the prevalence, causes, and consequences of homosexuality. He first suggests that greater priority should be given to sexual arousal and attraction over behaviour and identity because it is less prone to self- and other-deception, social conditions and variable meanings. To measure attraction and arousal he proposed that biological measures should be developed and used. There are numerous biological/physiological measures that exist that can measure sexual orientation such as sexual arousal, brain scans, eye tracking, body odour preference, and anatomical variations such as digit-length ratio and right or left handedness. Secondly, Savin-Williams suggests that researchers should forsake the general notion of sexual orientation altogether and assess only those components that are relevant for the research question being investigated. For example:
Who wrote the paper "Whos Gay? Does It Matter?
The answer is the following: Ritch Savin-Williams

Problem: The first such boom, covering the early years of the city, rode on the lumber industry. (During this period the road now known as Yesler Way won the nickname "Skid Road", supposedly after the timber skidding down the hill to Henry Yesler's sawmill. The later dereliction of the area may be a possible origin for the term which later entered the wider American lexicon as Skid Row.) Like much of the American West, Seattle saw numerous conflicts between labor and management, as well as ethnic tensions that culminated in the anti-Chinese riots of 18851886. This violence originated with unemployed whites who were determined to drive the Chinese from Seattle (anti-Chinese riots also occurred in Tacoma). In 1900, Asians were 4.2% of the population. Authorities declared martial law and federal troops arrived to put down the disorder.
What percentage of the Seattle population was Asian in 1900?
The answer is the following: 4.2%

Problem: In the late 14th century, the Songhai gradually gained independence from the Mali Empire and expanded, ultimately subsuming the entire eastern portion of the Mali Empire. The Songhai Empire's eventual collapse was largely the result of a Moroccan invasion in 1591, under the command of Judar Pasha. The fall of the Songhai Empire marked the end of the region's role as a trading crossroads. Following the establishment of sea routes by the European powers, the trans-Saharan trade routes lost significance.
What major impact did the falling of the Songhai Empire have?
The answer is the following:
Saharan trade routes lost significance.