Problem: Light-emitting diode:

High-power LEDs (HP-LEDs) or high-output LEDs (HO-LEDs) can be driven at currents from hundreds of mA to more than an ampere, compared with the tens of mA for other LEDs. Some can emit over a thousand lumens. LED power densities up to 300 W/cm2 have been achieved. Since overheating is destructive, the HP-LEDs must be mounted on a heat sink to allow for heat dissipation. If the heat from a HP-LED is not removed, the device will fail in seconds. One HP-LED can often replace an incandescent bulb in a flashlight, or be set in an array to form a powerful LED lamp.

How many lumens can some high-power LEDs emit?
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A: over a thousand

Problem: Somalis:

Growing out of the Somali people's rich storytelling tradition, the first few feature-length Somali films and cinematic festivals emerged in the early 1960s, immediately after independence. Following the creation of the Somali Film Agency (SFA) regulatory body in 1975, the local film scene began to expand rapidly. The Somali filmmaker Ali Said Hassan concurrently served as the SFA's representative in Rome. In the 1970s and early 1980s, popular musicals known as riwaayado were the main driving force behind the Somali movie industry. Epic and period films as well as international co-productions followed suit, facilitated by the proliferation of video technology and national television networks. Said Salah Ahmed during this period directed his first feature film, The Somali Darwish (The Somalia Dervishes), devoted to the Dervish State. In the 1990s and 2000s, a new wave of more entertainment-oriented movies emerged. Referred to as Somaliwood, this upstart, youth-based cinematic movement has energized the Somali film industry and in the process introduced innovative storylines, marketing strategies and production techniques. The young directors Abdisalam Aato of Olol Films and Abdi Malik Isak are at the forefront of this quiet revolution.

In what year was the SFA founded?
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A: 1975

Problem: Tibet:

After the Dalai Lama's government fled to Dharamsala, India, during the 1959 Tibetan Rebellion, it established a rival government-in-exile. Afterwards, the Central People's Government in Beijing renounced the agreement and began implementation of the halted social and political reforms. During the Great Leap Forward, between 200,000 and 1,000,000 Tibetans died, and approximately 6,000 monasteries were destroyed during the Cultural Revolution. In 1962 China and India fought a brief war over the disputed South Tibet and Aksai Chin regions. Although China won the war, Chinese troops withdrew north of the McMahon Line, effectively ceding South Tibet to India.

When did 6,000 Tibetans die?
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A: unanswerable

Problem: Humanism:

Active in the early 1920s, F.C.S. Schiller labelled his work "humanism" but for Schiller the term referred to the pragmatist philosophy he shared with William James. In 1929, Charles Francis Potter founded the First Humanist Society of New York whose advisory board included Julian Huxley, John Dewey, Albert Einstein and Thomas Mann. Potter was a minister from the Unitarian tradition and in 1930 he and his wife, Clara Cook Potter, published Humanism: A New Religion. Throughout the 1930s, Potter was an advocate of such liberal causes as, women's rights, access to birth control, "civil divorce laws", and an end to capital punishment.

Who destroyed the First Humanist Society of New York?
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A:
unanswerable