for school purpose
Yes they are. Most presidents do release this information to the public, since there is great interest in the health of the president. Historically, some presidents have hidden certain details, in order not to alarm the public; but for the most part, in our modern age, presidents have released information about their annual physical. President Obama is no exception. I enclose a link to the results of his 2011 physical exam.
When Washington was in office since there were no ex presidents.
Including the one in office in 1920 and up to and including Barack Obama, there have been 17 U.S. Presidents.
20
13
As of May, 2012 there have been 11 U. S. Presidents since Harry Truman.
The Federated States of Micronesia has had 7 presidents since 1979.
12
8
yes. The US Presidents have lived in the White House since 1800.
There have been a total of 10 presidents of Ireland since the office was established in 1938. Before that, Ireland was part of the United Kingdom and did not have a presidential system. Therefore, since the 1780s, there have been no Irish presidents, as the position did not exist until the 20th century.
There has been only two democratic presidents elected since Ronald Reagan, they are Bill Clinton and Barack Obama.