Problem: In 1899, the local postage stamps were overprinted "Guam" as was done for the other former Spanish colonies, but this was discontinued shortly thereafter and regular U.S. postage stamps have been used ever since. Because Guam is also part of the U.S. Postal System (postal abbreviation: GU, ZIP code range: 9691096932), mail to Guam from the U.S. mainland is considered domestic and no additional charges are required. Private shipping companies, such as FedEx, UPS, and DHL, however, have no obligation to do so, and do not regard Guam as domestic.
In what year was the local postage stamp overprinted and has since been replaced?
The answer is the following: 1899

Problem: The logical format of an audio CD (officially Compact Disc Digital Audio or CD-DA) is described in a document produced in 1980 by the format's joint creators, Sony and Philips. The document is known colloquially as the Red Book CD-DA after the colour of its cover. The format is a two-channel 16-bit PCM encoding at a 44.1 kHz sampling rate per channel. Four-channel sound was to be an allowable option within the Red Book format, but has never been implemented. Monaural audio has no existing standard on a Red Book CD; thus, mono source material is usually presented as two identical channels in a standard Red Book stereo track (i.e., mirrored mono); an MP3 CD, however, can have audio file formats with mono sound.
Where does the Red Book get it's name from?
The answer is the following: the colour of its cover

Problem: After the Treaty of Utrecht (1713), Sicily was handed over to the Savoia, but by 1734 it was again a Bourbon possession. Charles III chose Palermo for his coronation as King of Sicily. Charles had new houses built for the growing population, while trade and industry grew as well. However, by now Palermo was now just another provincial city as the Royal Court resided in Naples. Charles' son Ferdinand, though disliked by the population, took refuge in Palermo after the French Revolution in 1798. His son Alberto died on the way to Palermo and is buried in the city. When the Kingdom of the Two Sicilies was founded, the original capital city was Palermo (1816) but a year later moved to Naples.
After what treaty did Savoia gain control of Italy?
The answer is the following: Treaty of Utrecht (1713)

Problem: The Taliban regrouped in western Pakistan and began to unleash an insurgent-style offensive against Coalition forces in late 2002. Throughout southern and eastern Afghanistan, firefights broke out between the surging Taliban and Coalition forces. Coalition forces responded with a series of military offensives and an increase in the amount of troops in Afghanistan. In February 2010, Coalition forces launched Operation Moshtarak in southern Afghanistan along with other military offensives in the hopes that they would destroy the Taliban insurgency once and for all. Peace talks are also underway between Taliban affiliated fighters and Coalition forces. In September 2014, Afghanistan and the United States signed a security agreement, which permits United States and NATO forces to remain in Afghanistan until at least 2024. The United States and other NATO and non-NATO forces are planning to withdraw; with the Taliban claiming it has defeated the United States and NATO, and the Obama Administration viewing it as a victory. In December 2014, ISAF encasing its colors, and Resolute Support began as the NATO operation in Afghanistan. Continued United States operations within Afghanistan will continue under the name "Operation Freedom's Sentinel".
In what parts of Afghanistan did the Taliban attack Coalition forces in 2002?
The answer is the following:
southern and eastern