Problem: Many more of the control codes have been given meanings quite different from their original ones. The "escape" character (ESC, code 27), for example, was intended originally to allow sending other control characters as literals instead of invoking their meaning. This is the same meaning of "escape" encountered in URL encodings, C language strings, and other systems where certain characters have a reserved meaning. Over time this meaning has been co-opted and has eventually been changed. In modern use, an ESC sent to the terminal usually indicates the start of a command sequence, usually in the form of a so-called "ANSI escape code" (or, more properly, a "Control Sequence Introducer") beginning with ESC followed by a "[" (left-bracket) character. An ESC sent from the terminal is most often used as an out-of-band character used to terminate an operation, as in the TECO and vi text editors. In graphical user interface (GUI) and windowing systems, ESC generally causes an application to abort its current operation or to exit (terminate) altogether.
What is an ESC sent to control characters usually in the form of?
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Answer: unanswerable

Problem:
Pakistan: The Olympic torch reached Islamabad for the first time ever on April 16. President Pervez Musharraf and Prime Minister Yousaf Raza Gillani spoke at the opening ceremony of the relay. Security was high, for what one newspaper called the "most sensitive leg" of the torch's Olympic journey. The relay was initially supposed to carry the torch around Islamabad, but the entire relay was cancelled due to security concerns regarding "militant threats or anti-China protests", and replaced by an indoors ceremony with the torch carried around the track of Jinnah Stadium. In fear of violent protests and bomb attacks, the torch relay in Pakistan took place in a stadium behind closed doors. Although the relay was behind closed doors, thousands of policemen and soldiers guarded the flame. As a consequence, no incidents arose.
Where was an indoor ceremony held since the outdoor relay was cancelled?
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Answer: Jinnah Stadium

Problem: Arguing against the absolutist position, Leibniz offers a number of thought experiments with the purpose of showing that there is contradiction in assuming the existence of facts such as absolute location and velocity. These arguments trade heavily on two principles central to his philosophy: the principle of sufficient reason and the identity of indiscernibles. The principle of sufficient reason holds that for every fact, there is a reason that is sufficient to explain what and why it is the way it is and not otherwise. The identity of indiscernibles states that if there is no way of telling two entities apart, then they are one and the same thing.
What states that two things are not necessarily the same just because no difference can be identified?
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Answer:
unanswerable