Problem: Classical music:

The family of instruments used, especially in orchestras, grew. A wider array of percussion instruments began to appear. Brass instruments took on larger roles, as the introduction of rotary valves made it possible for them to play a wider range of notes. The size of the orchestra (typically around 40 in the Classical era) grew to be over 100. Gustav Mahler's 1906 Symphony No. 8, for example, has been performed with over 150 instrumentalists and choirs of over 400.

What size of choirs have performed Gustav Mahler's 1906 Symphony No. 8?
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A: over 400

Problem: Near East:

The U.S. Agency for International Development (USAID), an independent agency under the Department of State established in place of the Marshall Plan for the purpose of determining and distributing foreign aid, does not use the term Near East. Its definition of Middle East corresponds to that of the State Department, which officially prefers the term Near East.

What is the independant agency under the Department of State for the purpose of determining and distributing foreign aid called?
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A: USAID

Problem: Geological history of Earth:

The Paleozoic spanned from roughly 541 to 252 million years ago (Ma) and is subdivided into six geologic periods; from oldest to youngest they are the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian. Geologically, the Paleozoic starts shortly after the breakup of a supercontinent called Pannotia and at the end of a global ice age. Throughout the early Paleozoic, the Earth's landmass was broken up into a substantial number of relatively small continents. Toward the end of the era the continents gathered together into a supercontinent called Pangaea, which included most of the Earth's land area.

What was the scope of the ice age that began at the same time as the Paleozoic period?
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A: unanswerable

Problem: God:

Prayer plays a significant role among many believers. Muslims believe that the purpose of existence is to worship God. He is viewed as a personal God and there are no intermediaries, such as clergy, to contact God. Prayer often also includes supplication and asking forgiveness. God is often believed to be forgiving. For example, a hadith states God would replace a sinless people with one who sinned but still asked repentance. Christian theologian Alister McGrath writes that there are good reasons to suggest that a "personal god" is integral to the Christian outlook, but that one has to understand it is an analogy. "To say that God is like a person is to affirm the divine ability and willingness to relate to others. This does not imply that God is human, or located at a specific point in the universe."

What type of God is the Muslim God?
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A:
forgiving