Problem: In process known as the Marian reforms, Roman consul Gaius Marius carried out a programme of reform of the Roman military. In 107 BC, all citizens, regardless of their wealth or social class, were made eligible for entry into the Roman army. This move formalised and concluded a gradual process that had been growing for centuries, of removing property requirements for military service. The distinction between the three heavy infantry classes, which had already become blurred, had collapsed into a single class of heavy legionary infantry. The heavy infantry legionaries were drawn from citizen stock, while non-citizens came to dominate the ranks of the light infantry. The army's higher-level officers and commanders were still drawn exclusively from the Roman aristocracy.
Where would legionaries in the Roman army likely to be sourced from?
The answer is the following: citizen stock

Problem: Beginning in the late 1910s and early 1920s, Whitehead gradually turned his attention from mathematics to philosophy of science, and finally to metaphysics. He developed a comprehensive metaphysical system which radically departed from most of western philosophy. Whitehead argued that reality consists of processes rather than material objects, and that processes are best defined by their relations with other processes, thus rejecting the theory that reality is fundamentally constructed by bits of matter that exist independently of one another. Today Whitehead's philosophical works – particularly Process and Reality – are regarded as the foundational texts of process philosophy.
What was Whitehead's final area of study?
The answer is the following: metaphysics

Problem: Qado or lunch is often elaborate. Varieties of bariis (rice), the most popular probably being basmati, usually serve as the main dish. Spices like cumin, cardamom, cloves, cinnamon, and garden sage are used to aromatize these different rice delicacies. Somalis eat dinner as late as 9 pm. During Ramadan, supper is often served after Tarawih prayers; sometimes as late as 11 pm.
After what event during Ramadan is dinner served?
The answer is the following: Tarawih prayers

Problem: Relying exclusively on unedited machine translation, however, ignores the fact that communication in human language is context-embedded and that it takes a person to comprehend the context of the original text with a reasonable degree of probability. It is certainly true that even purely human-generated translations are prone to error; therefore, to ensure that a machine-generated translation will be useful to a human being and that publishable-quality translation is achieved, such translations must be reviewed and edited by a human.
What does it take a person to be able to do?
The answer is the following:
comprehend the context of the original text