British and American culture

Chao cac ban!
Minh dang tim hieu ve van hoa Anh va My. Cac ban giup minh mot chut duoc khong?
1) how many constitutions are there in Britain?
2) who is the head of the House of Lord and the House of Common? (in Britain)
3) who is the head of the Senate and the House of Representative? (in the USA)
4) what are the similarities and diferrences between British educational system and American educational system?
Cam on nhieu ha.

1) Magna Carta
http://elt.britishcouncil.org.pl/g_fco.htm
2) http://www.parliament.uk/about_commons/about_commons.cfm
http://www.parliament.uk/about_lords/about_lords.cfm
3) who is the head of the Senate and the House of Representative?
Vice President & Speaker of the House
http://www.congress.org/congressorg/dbq/officials/directory/directory.dbq?command=congdir

Let me have a go:
1) how many constitutions are there in Britain?
As far as I know,there are four constitutions in Britain:
-Devolution and Health.
-Effective Scrutiny.
-Freedom of Information and Data Protection.
-Nations and Regions.
I gotta go!