How many countries in the world has federalism?

Is Henry VIII's first wife still alive? When was John Grover - British Army officer - born? What are some similarities between Kim Jong-il and George Orwells character Big Brother? How far is Northallerton from RAF Leeming in a straight line? What is Saddam Hussein's ideology? Why is one child policy stricter in urban areas in china than rural? Who was the king that died during a joust? What is Henry VII's weakness? What startling announcement does Charles make to Meg and Cal? The Art Institute of Houston public or private? Where did Fidel Castro go to college? What is the highest value Princess Diana mint stamp? Did Henry VIII divorce solve his problems? What country has two smaller countries inside of it? How much Fidel Castro weigh? What is the importance of time in the evolutionary theory? The prime minister before sir Winston churchill? Why is Queen Victoria Queen? HOW DID ANNE BOLENY AND HERNY MARRIAGE END? When does sir john Houblon 50 note go out of circulatio?

How many countries in the world has federalism?