Context and question: As of 2000[update], children and teenagers (019 years old) make up 15.1% of the population, while adults (2064 years old) make up 65% and seniors (over 64 years old) make up 19.9%.
What age group has most of the population included?
Answer: adults
Context and question: Arsenal finished in either first or second place in the league in eight of Wenger's first eleven seasons at the club, although on no occasion were they able to retain the title. As of July 2013, they were one of only five teams, the others being Manchester United, Blackburn Rovers, Chelsea, and Manchester City, to have won the Premier League since its formation in 1992. Arsenal had never progressed beyond the quarter-finals of the Champions League until 200506; in that season they became the first club from London in the competition's fifty-year history to reach the final, in which they were beaten 21 by Barcelona. In July 2006, they moved into the Emirates Stadium, after 93 years at Highbury.
Manchester United plays in what stadium?
Answer: unanswerable
Context and question: Different fields of science use the term matter in different, and sometimes incompatible, ways. Some of these ways are based on loose historical meanings, from a time when there was no reason to distinguish mass and matter. As such, there is no single universally agreed scientific meaning of the word "matter". Scientifically, the term "mass" is well-defined, but "matter" is not. Sometimes in the field of physics "matter" is simply equated with particles that exhibit rest mass (i.e., that cannot travel at the speed of light), such as quarks and leptons. However, in both physics and chemistry, matter exhibits both wave-like and particle-like properties, the so-called waveparticle duality.
What does matter do in chemistry that it does not do in physics?
Answer:
unanswerable