QUES: Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest mineable amounts are found in Australia, Asia, and the United States. Zinc production includes froth flotation of the ore, roasting, and final extraction using electricity (electrowinning).

What is the atomic number for Zinc?
What is the answer?
ANS: 30
QUES: The Districts of Germany (Kreise) are administrative districts, and every state except the city-states of Berlin, Hamburg, and Bremen consists of "rural districts" (Landkreise), District-free Towns/Cities (Kreisfreie Stadte, in Baden-Wurttemberg also called "urban districts", or Stadtkreise), cities that are districts in their own right, or local associations of a special kind (Kommunalverbande besonderer Art), see below. The state Free Hanseatic City of Bremen consists of two urban districts, while Berlin and Hamburg are states and urban districts at the same time.

What districts do every state, including, Berlin, Hamburg and Bremen have?
What is the answer?
ANS: unanswerable
QUES: Philadelphia is also a major hub for Greyhound Lines, which operates 24-hour service to points east of the Mississippi River. Most of Greyhound's services in Philadelphia operate to/from the Philadelphia Greyhound Terminal, located at 1001 Filbert Street in Center City Philadelphia. In 2006, the Philadelphia Greyhound Terminal was the second busiest Greyhound terminal in the United States, after the Port Authority Bus Terminal in New York. Besides Greyhound, six other bus operators provide service to the Center City Greyhound terminal: Bieber Tourways, Capitol Trailways, Martz Trailways, Peter Pan Bus Lines, Susquehanna Trailways, and the bus division for New Jersey Transit. Other services include Megabus and Bolt Bus.

How many other bus companies operate from Philadelphia?
What is the answer?
ANS:
six