Here is a question about this article: From the mid-1950s through the 1960s, in the U.S. the common home record player or "stereo" (after the introduction of stereo recording) would typically have had these features: a three- or four-speed player (78, 45, 33 13, and sometimes 16 23 rpm); with changer, a tall spindle that would hold several records and automatically drop a new record on top of the previous one when it had finished playing, a combination cartridge with both 78 and microgroove styli and a way to flip between the two; and some kind of adapter for playing the 45s with their larger center hole. The adapter could be a small solid circle that fit onto the bottom of the spindle (meaning only one 45 could be played at a time) or a larger adaptor that fit over the entire spindle, permitting a stack of 45s to be played.
What is the answer to this question: What format was less common but could sometimes be found on home stereos?
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So... 16 23 rpm

Here is a question about this article: The French forces tried to subdue and capture the liberal government based in Saltillo. On September 21, 1864, Jose Maria Patoni and Jesus Gonzalez Ortega lost against the French forces at the Battle of Estanzuelas; the supreme government led by President Juarez was forced to evacuate the city of Saltillo and relocate to Chihuahua. Juarez stopped in Ciudad Jimenez, Valle de Allende, and Hidalgo de Parral, in turn. He decreed Parral the capital of Mexico from October 25, 1864. Perceiving the threat from the advancing French forces, the president continued his evacuation through Santa Rosalia de Camargo, Santa Cruz de Rosales, and finally Chihuahua, Chihuahua. On October 12, 1864, the people of the state gave President Juarez an overwhelmingly supportive reception, led by Governor Angel Trias. On October 15, 1864 the city of Chihuahua was declared the temporary capital of Mexico.
What is the answer to this question: The goverment led by whom was forced to evacuate Saltillo?
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So... President Juarez

Here is a question about this article: An alternative concept is that they formed closer to the Sun, where the matter density was higher, and then subsequently migrated to their current orbits after the removal of the gaseous protoplanetary disc. This hypothesis of migration after formation is favoured, due to its ability to better explain the occupancy of the populations of small objects observed in the trans-Neptunian region. The current most widely accepted explanation of the details of this hypothesis is known as the Nice model, which explores the effect of a migrating Neptune and the other giant planets on the structure of the Kuiper belt.
What is the answer to this question: If Neptune formed closer to the sun, what caused it to migrate to it's current orbit?
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So...
removal of the gaseous protoplanetary disc