Why attackers of siege march around the castle making lots of noise?

Why is the Danube river so important? How does meander neck cutoff form an oxbow lake? Europe is to Danube as Asia is to? What is the name of the bridge in Paris that is only for pedestrians? On which river is kakrapura project? What is the east side of the Nile River called? What are the 5 oceans in the world? What color is deep Danube? Which is largest national park in maharashtra? How much was the tsunami warning system in Indonesian? What is the name of the swift warm current that flows northward along the East coast of the US? How much does it cost to get into trentham gardens? What is the administrative region of china once a portuguese colony that lies on the pearl river delta? How high above sea level is the highest part of the Canal? How does fertilizer affect your oceans? Where did Lake Huron get its name from? What can be found at the Six Flags Marine World in Vallejo? Where in the Everglades do dolphins live? Where is the Wyandotte Museum in Wyandotte Michigan located? On what sea would Polish bathing beaches front?