The problem: Answer a question about this article:
Gladstone returned to power after the 1892 general election; he was 82 years old. Victoria objected when Gladstone proposed appointing the Radical MP Henry Labouchere to the Cabinet, so Gladstone agreed not to appoint him. In 1894, Gladstone retired and, without consulting the outgoing prime minister, Victoria appointed Lord Rosebery as prime minister. His government was weak, and the following year Lord Salisbury replaced him. Salisbury remained prime minister for the remainder of Victoria's reign.
How old was Gladstone when he returned to power?
****
The answer: 82 years old

The problem: Answer a question about this article:
Popper puzzled over the stark contrast between the non-scientific character of Freud and Adler's theories in the field of psychology and the revolution set off by Einstein's theory of relativity in physics in the early 20th century. Popper thought that Einstein's theory, as a theory properly grounded in scientific thought and method, was highly "risky", in the sense that it was possible to deduce consequences from it which were, in the light of the then-dominant Newtonian physics, highly improbable (e.g., that light is deflected towards solid bodiesconfirmed by Eddington's experiments in 1919), and which would, if they turned out to be false, falsify the whole theory. In contrast, nothing could, even in principle, falsify psychoanalytic theories. He thus came to the conclusion that psychoanalytic theories had more in common with primitive myths than with genuine science.
Which two important psychologists did Popper view as advancing non-scientific theories?
****
The answer: Freud and Adler

The problem: Answer a question about this article:
In the spring of 1854 the Russians again advanced, crossing the Danube River into the Turkish province of Dobruja. By April 1854, the Russians had reached the lines of Trajan's Wall where they were finally halted. In the center, the Russian forces crossed the Danube and laid siege to Silistra from 14 April with 60,000 troops, the defenders with 15,000 had supplies for three months.:415 The siege was lifted on 23 June 1854. The English and French forces at this time were unable to take the field for lack of equipment.:415
What river did the Russians cross to get to Dobruja?
****
The answer: Danube River

The problem: Answer a question about this article:
The Nippon Hoso Kyokai (NHK, the Japan Broadcasting Corporation) began conducting research to "unlock the fundamental mechanism of video and sound interactions with the five human senses" in 1964, after the Tokyo Olympics. NHK set out to create an HDTV system that ended up scoring much higher in subjective tests than NTSC's previously dubbed "HDTV". This new system, NHK Color, created in 1972, included 1125 lines, a 5:3 aspect ratio and 60 Hz refresh rate. The Society of Motion Picture and Television Engineers (SMPTE), headed by Charles Ginsburg, became the testing and study authority for HDTV technology in the international theater. SMPTE would test HDTV systems from different companies from every conceivable perspective, but the problem of combining the different formats plagued the technology for many years.
What year was NHK Color created?
****
The answer:
1972