Problem: Richmond, Virginia:

Much of Richmond's early architecture was destroyed by the Evacuation Fire in 1865. It is estimated that 25% of all buildings in Richmond were destroyed during this fire. Even fewer now remain due to construction and demolition that has taken place since Reconstruction. In spite of this, Richmond contains many historically significant buildings and districts. Buildings remain from Richmond's colonial period, such as the Patteson-Schutte House and the Edgar Allan Poe Museum (Richmond, Virginia), both built before 1750.

Prior to what year was the Patterson-Schutte House built?
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A: 1750

Problem: Paper:

The thickness of paper is often measured by caliper, which is typically given in thousandths of an inch in the United States and in thousandths of a mm in the rest of the world. Paper may be between 0.07 and 0.18 millimetres (0.0028 and 0.0071 in) thick.

Sated in inches, what is the common range of paper thickness?
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A: 0.0028 and 0.0071 in

Problem: Liberal Party of Australia:

Following the 197475 Loans Affair, the Malcolm Fraser led Liberal-Country Party Coalition argued that the Whitlam Government was incompetent and delayed passage of the Government's money bills in the Senate, until the government would promise a new election. Whitlam refused, Fraser insisted leading to the divisive 1975 Australian constitutional crisis. The deadlock came to an end when the Whitlam government was dismissed by the Governor-General, Sir John Kerr on 11 November 1975 and Fraser was installed as caretaker Prime Minister, pending an election. Fraser won in a landslide at the resulting 1975 election.

Who won the 1974 election by large margin?
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A: unanswerable

Problem: Gramophone record:

Electric recording which developed during the time that early radio was becoming popular (1925) benefited from the microphones and amplifiers used in radio studios. The early electric recordings were reminiscent tonally of acoustic recordings, except there was more recorded bass and treble as well as delicate sounds and overtones cut on the records. This was in spite of some carbon microphones used, which had resonances that colored the recorded tone. The double button carbon microphone with stretched diaphragm was a marked improvement. Alternatively, the Wente style condenser microphone used with the Western Electric licensed recording method had a brilliant midrange and was prone to overloading from sibilants in speech, but generally it gave more accurate reproduction than carbon microphones.

What type of microphones were losing popularity in the 1920s?
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A:
carbon microphones used,