10 most difficult Poland riddles

Poland bordered Germany, the Protectorate of the Czech Republic and Moravia, Slovakia, Hungary, Romania, the USSR, Latvia and Lithuania.

Argentina maintains the most permanent polar stations - 6, Chile - 5, Russia - 5.

The 7TP was a Polish light tank of the Second World War. A development of the British Vickers 6-ton, it was significantly better armed than its most common opponents, the German Panzer I and Panzer II. A standard tank of the Polish Army during the 1939 Invasion of Poland, its production never exceeded 150 vehicles.

The conquest of Silesia was such a significant gain to the Kingdom of Prussia that shortly after Wroclaw (known as Breslau at the time) was elevated to the third capital of the state alongside Königsberg and Berlin. The official title was the Royal and Residential City of Wroclaw (ger. Königliche Haupt- und Residenzstadt Breslau).

Rysy is a mountain in the coat of arms of the High Tatras with three peaks: the middle at 2,503 m (8,212 ft); the north-western at 2,499 m (8,199 ft); and the south-eastern at 2,473 m (8,114 ft). The north-western summit is the highest point of Poland and belongs to Crown of Polish Mountains; the other two summits are on the Slovak side of the border.

Alfred Tarski was a Polish-American logician and mathematician. A prolific author best known for his work on model theory, metamathematics, and algebraic logic. He taught and carried out research in mathematics at the University of California, Berkeley, from 1942 until his death in 1983.

Stilo lighthouse is a lighthouse located in Osetnik on the Polish coast of the Baltic Sea, close to the village of Sasino.The lighthouse is located in between the Czołpino lighthouse and the Rozewie lighthouse. The lighthouse was built between 1904 and 1906 by the plans of German architect Walter Körteg.

Polish Armed Forces did have around 600 tanks at its disposal. Mainly tankettes TK-3 and TKS but also 7TP, Renault FT, Renault R-35, Hotchkiss H-35 and couple of prototypes.

John III Sobieski (17 August 1629 – 17 June 1696), was King of Poland and Grand Duke of Lithuania from 1674 until his death, and one of the most notable monarchs of the Polish–Lithuanian Commonwealth. He was an able military commander, most famous for his victory over the Turks at the 1683 Battle of Vienna. After his victories over them, the Ottomans called him the "Lion of Lechistan"; and the Pope hailed him as the savior of Christendom. King John III Sobieski died in Wilanów, Poland on 17 June 1696 from a sudden heart attack.

The Oder–Neisse line is the basis of the international border between Germany and Poland. After the revolutions of 1989, the newly reunified Germany and the newly democratic Republic of Poland definitively accepted the line as their border in the 1990 German–Polish Border Treaty. Poland joined the Schengen Area in 2007. This meant that all passport checks were removed along the border in December 2007.