IBM has constantly evolved since its inception. Over the past decade, it has steadily shifted its business mix by exiting commoditizing markets such as PCs, hard disk drives and DRAMs and focusing on higher-value, more profitable markets such as business intelligence, data analytics, business continuity, security, cloud computing, virtualization and green solutions, resulting in a higher quality revenue stream and higher profit margins. IBM's operating margin expanded from 16.8% in 2004 to 24.3% in 2013, and net profit margins expanded from 9.0% in 2004 to 16.5% in 2013.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): IBM's net profit margins were 16.5% in what year?
Ah, so.. 2013

Everton's second successful era started when Harry Catterick was made manager in 1961. In 1962–63, his second season in charge, Everton won the League title and in 1966 the FA Cup followed with a 3–2 win over Sheffield Wednesday. Everton again reached the final in 1968, but this time were unable to overcome West Bromwich Albion at Wembley. Two seasons later in 1969–70, Everton won the League championship, nine points clear of nearest rivals Leeds United. During this period, Everton were the first English club to achieve five consecutive years in European competitions—seasons 1961–62 to 1966–67.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In what year did Everton's second successful era begin?
Ah, so.. 1961

Through the 1960s, 1970s, and 1980s, various methods to improve the dynamic range of mass-produced records involved highly advanced disc cutting equipment. These techniques, marketed, to name two, as the CBS DisComputer and Teldec Direct Metal Mastering, were used to reduce inner-groove distortion. RCA Victor introduced another system to reduce dynamic range and achieve a groove with less surface noise under the commercial name of Dynagroove. Two main elements were combined: another disk material with less surface noise in the groove and dynamic compression for masking background noise. Sometimes this was called "diaphragming" the source material and not favoured by some music lovers for its unnatural side effects. Both elements were reflected in the brandname of Dynagroove, described elsewhere in more detail. It also used the earlier advanced method of forward-looking control on groove spacing with respect to volume of sound and position on the disk. Lower recorded volume used closer spacing; higher recorded volume used wider spacing, especially with lower frequencies. Also, the higher track density at lower volumes enabled disk recordings to end farther away from the disk center than usual, helping to reduce endtrack distortion even further.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who developed the Dynagroove format?
Ah, so..
RCA Victor