Problem: Mosaic:

The craft has also been popular in early medieval Rus, inherited as part of the Byzantine tradition. Yaroslav, the Grand Prince of the Kievan Rus' built a large cathedral in his capital, Kiev. The model of the church was the Hagia Sophia in Constantinople, and it was also called Saint Sophia Cathedral. It was built mainly by Byzantine master craftsmen, sent by Constantine Monomachos, between 1037 and 1046. Naturally the more important surfaces in the interior were decorated with golden mosaics. In the dome we can see the traditional stern Pantokrator supported by angels. Between the 12 windows of the drum were apostles and the four evangelists on the pendentives. The apse is dominated by an orant Theotokos with a Deesis in three medallions above. Below is a Communion of the Apostles.

What was used as a model for the church Yaroslav commissioned?
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A: the Hagia Sophia

Problem: Letter case:

The terms upper case and lower case can be written as two consecutive words, connected with a hyphen (upper-case and lower-case), or as a single word (uppercase and lowercase). These terms originated from the common layouts of the shallow drawers called type cases used to hold the movable type for letterpress printing. Traditionally, the capital letters were stored in a separate case that was located above the case that held the small letters, and the name proved easy to remember since capital letters are taller.

In relation to the shelf the small letters were located, where were the capital letters?
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A: located above

Problem: Estonia:

The military of Estonia is based upon the Estonian Defence Forces (Estonian: Kaitsevagi), which is the name of the unified armed forces of the republic with Maavagi (Army), Merevagi (Navy), Ohuvagi (Air Force) and a paramilitary national guard organisation Kaitseliit (Defence League). The Estonian National Defence Policy aim is to guarantee the preservation of the independence and sovereignty of the state, the integrity of its land, territorial waters, airspace and its constitutional order. Current strategic goals are to defend the country's interests, develop the armed forces for interoperability with other NATO and EU member forces, and participation in NATO missions.

What is the name of Estonia's Army?
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A: Maavagi

Problem: Tristan da Cunha:

During World War II, the islands were used as a top secret Royal Navy weather and radio station codenamed HMS Atlantic Isle, to monitor Nazi U-boats (which were required to maintain radio contact) and shipping movements in the South Atlantic Ocean. The first Administrator, Surgeon Lieutenant Commander E.J.S. Woolley, was appointed by the British government during this time.

What were the islands used as during World War I?
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A:
unanswerable