Question: The 'OtherOS' functionality was not present in the updated PS Slim models, and the feature was subsequently removed from previous versions of the PS3 as part of the machine's firmware update version 3.21 which was released on April 1, 2010; Sony cited security concerns as the rationale. The firmware update 3.21 was mandatory for access to the PlayStation Network. The removal caused some controversy; as the update removed officially advertised features from already sold products, and gave rise to several class action lawsuits aimed at making Sony return the feature or provide compensation.
Is there an answer to this question: Which PS3 model never included OtherOS?

Answer: PS Slim

Question: On December 24, Yeltsin informed the Secretary-General of the United Nations that by agreement of the member states of the CIS Russian Federation would assume the membership of the Soviet Union in all UN organs (including permanent membership in the UN Security Council). Thus, Russia is considered to be an original member of the UN (since October 24, 1945) along with Ukraine (Ukrainian SSR) and Belarus (Byelorussian SSR). On December 25just hours after Gorbachev resigned as president of the Soviet Unionthe Russian SFSR was renamed the Russian Federation (Russia), reflecting that it was now a sovereign state with Yeltsin assuming the Presidency. The change was originally published on January 6, 1992 (Rossiyskaya Gazeta). According to law, during 1992, it was allowed to use the old name of the RSFSR for official business (forms, seals and stamps). The Russian Federation's Constitution (Fundamental Law) of 1978, though with the 19911992 Amendements, remained in effect until the 1993 Russian constitutional crisis.
Is there an answer to this question: When did the Russian Federation reject the Soviet Union's membership in the UN?

Answer: unanswerable

Question: The most common symptom of LED (and diode laser) failure is the gradual lowering of light output and loss of efficiency. Sudden failures, although rare, can also occur. Early red LEDs were notable for their short service life. With the development of high-power LEDs the devices are subjected to higher junction temperatures and higher current densities than traditional devices. This causes stress on the material and may cause early light-output degradation. To quantitatively classify useful lifetime in a standardized manner it has been suggested to use L70 or L50, which are the runtimes (typically given in thousands of hours) at which a given LED reaches 70% and 50% of initial light output, respectively.
Is there an answer to this question: What is a classification used in LED lighting to describe how much usefulness it will receive?

Answer: L70 or L50

Question: In Bolivia, a 62% majority of residents over the age of 15 self-identify as belonging to an indigenous people, while another 3.7% grew up with an indigenous mother tongue yet do not self-identify as indigenous. Including both of these categories, and children under 15, some 66.4% of Bolivia's population was registered as indigenous in the 2001 Census. The largest indigenous ethnic groups are: Quechua, about 2.5 million people; Aymara, 2.0 million; Chiquitano, 181,000; Guarani, 126,000; and Mojeno, 69,000. Some 124,000 belong to smaller indigenous groups. The Constitution of Bolivia, enacted in 2009, recognizes 36 cultures, each with its own language, as part of a plurinational state. Some groups, including CONAMAQ (the National Council of Ayllus and Markas of Qullasuyu) draw ethnic boundaries within the Quechua- and Aymara-speaking population, resulting in a total of fifty indigenous peoples native to Bolivia.
Is there an answer to this question: In the 2001 census, how much of Bolivia's population was labeled as being indigenous?

Answer:
66.4%