Question: The area's many colleges and universities are active in college athletics. Four NCAA Division I members play in the city—Boston College, Boston University, Harvard University, and Northeastern University. Of the four, only Boston College participates in college football at the highest level, the Football Bowl Subdivision. Harvard participates in the second-highest level, the Football Championship Subdivision.
Try to answer this question if possible: How many NCAA Division I members play in Boston?
Answer: four
Question: The quark–lepton definition of ordinary matter, however, identifies not only the elementary building blocks of matter, but also includes composites made from the constituents (atoms and molecules, for example). Such composites contain an interaction energy that holds the constituents together, and may constitute the bulk of the mass of the composite. As an example, to a great extent, the mass of an atom is simply the sum of the masses of its constituent protons, neutrons and electrons. However, digging deeper, the protons and neutrons are made up of quarks bound together by gluon fields (see dynamics of quantum chromodynamics) and these gluons fields contribute significantly to the mass of hadrons. In other words, most of what composes the "mass" of ordinary matter is due to the binding energy of quarks within protons and neutrons. For example, the sum of the mass of the three quarks in a nucleon is approximately 7001125000000000000♠12.5 MeV/c2, which is low compared to the mass of a nucleon (approximately 7002938000000000000♠938 MeV/c2). The bottom line is that most of the mass of everyday objects comes from the interaction energy of its elementary components.
Try to answer this question if possible: What is the mass of a proton?
Answer: unanswerable
Question: Victoria wrote to her uncle Leopold, whom Victoria considered her "best and kindest adviser", to thank him "for the prospect of great happiness you have contributed to give me, in the person of dear Albert ... He possesses every quality that could be desired to render me perfectly happy. He is so sensible, so kind, and so good, and so amiable too. He has besides the most pleasing and delightful exterior and appearance you can possibly see." However at 17, Victoria, though interested in Albert, was not yet ready to marry. The parties did not undertake a formal engagement, but assumed that the match would take place in due time.
Try to answer this question if possible: Who did Victoria credit for her relationship to Albert?
Answer: her uncle Leopold
Question: In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored.
Try to answer this question if possible: In which month of 2007 was the fifth satellite for the BeiDou-1 system launched?
Answer:
unanswerable