Problem: In 2011, the Aragonese government passed a decree for the establishment of a new language regulator of Catalan in La Franja (the so-called Catalan-speaking areas of Aragon). The new entity, designated as Academia Aragonesa del Catala, shall allow a facultative education in Catalan and a standardization of the Catalan language in La Franja.
What language is the regulator meant to standardize?
The answer is the following: Catalan

Problem: In November 2008, 720p HD support was added. At the time of the 720p launch, the YouTube player was changed from a 4:3 aspect ratio to a widescreen 16:9. With this new feature, YouTube began a switchover to H.264/MPEG-4 AVC as its default video compression format. In November 2009, 1080p HD support was added. In July 2010, YouTube announced that it had launched a range of videos in 4K format, which allows a resolution of up to 40963072 pixels. In June 2015, support for 8K resolution was added, with the videos playing at 76804320 pixels.
When was 720p HD support added to youtube?
The answer is the following: In November 2008

Problem: Tennessee is known as the "Volunteer State", a nickname some claimed was earned during the War of 1812 because of the prominent role played by volunteer soldiers from Tennessee, especially during the Battle of New Orleans. Other sources differ on the origin of the state nickname; according to the Columbia Encyclopedia, the name refers to volunteers for the MexicanAmerican War. This explanation is more likely, because President Polk's call for 2,600 nationwide volunteers at the beginning of the Mexican-American War resulted in 30,000 volunteers from Tennessee alone, largely in response to the death of Davy Crockett and appeals by former Tennessee Governor and now Texas politician, Sam Houston.
Which local icon's death inspired many of the Tennessee volunteers during the Mexican-American War?
The answer is the following: Davy Crockett

Problem: Despite the continuing prominence of Nanjing (then known as Jiankang), the settlement of Qiantang, the former name of Hangzhou, remained one of the three major metropolitan centers in the south to provide major tax revenue to the imperial centers in the north China. The other two centers in the south were Jiankang and Chengdu. In 589, Qiangtang was raised in status and renamed Hangzhou.
How many major metropolitan centers were there in the south at the time?
The answer is the following:
three