Question: Arsenal's tally of 13 League Championships is the third highest in English football, after Manchester United (20) and Liverpool (18), and they were the first club to reach 8 League Championships. They hold the highest number of FA Cup trophies, 12. The club is one of only six clubs to have won the FA Cup twice in succession, in 2002 and 2003, and 2014 and 2015. Arsenal have achieved three League and FA Cup "Doubles" (in 1971, 1998 and 2002), a feat only previously achieved by Manchester United (in 1994, 1996 and 1999). They were the first side in English football to complete the FA Cup and League Cup double, in 1993. Arsenal were also the first London club to reach the final of the UEFA Champions League, in 2006, losing the final 2–1 to Barcelona.
Is there an answer to this question: How many times has Barcelona won the UEFA Champions League?

Answer: unanswerable


Question: A wrestler's championship accomplishments can be central to their career, becoming a measure of their performance ability and drawing power. In general, a wrestler with multiple title reigns or an extended title reign is indicative of a wrestler's ability to maintain audience interest and/or a wrestler's ability to perform in the ring. As such, the most accomplished or decorated wrestlers tend to be revered as legends despite the predetermined nature of title reigns. American wrestler Ric Flair has had multiple world heavyweight championship reigns spanning over three decades. Japanese wrestler Último Dragón once held and defended a record 10 titles simultaneously.
Is there an answer to this question: What can be important in a wrestler's career? 

Answer: championship accomplishments


Question: Sub- and quotient groups are related in the following way: a subset H of G can be seen as an injective map H → G, i.e. any element of the target has at most one element that maps to it. The counterpart to injective maps are surjective maps (every element of the target is mapped onto), such as the canonical map G → G / N.y[›] Interpreting subgroup and quotients in light of these homomorphisms emphasizes the structural concept inherent to these definitions alluded to in the introduction. In general, homomorphisms are neither injective nor surjective. Kernel and image of group homomorphisms and the first isomorphism theorem address this phenomenon.
Is there an answer to this question: What map shows the relation between sub and quotient groups?

Answer: injective map


Question: On October 22, 2007, Apple reported quarterly revenue of US$6.22 billion, of which 30.69% came from Apple notebook sales, 19.22% from desktop sales and 26% from iPod sales. Apple's 2007 year revenue increased to US$24.01 billion with US$3.5 billion in profits. Apple ended the fiscal year 2007 with US$15.4 billion in cash and no debt.
Is there an answer to this question: What was Apple's revenue for Q3 2007?

Answer:
$6.22 billion