are pakistan part of the un security council?

Answer 1

No, current membership:
Membership in 2006

The Council is composed of five permanent members — China, France, Russian Federation, the United Kingdom and the United States — and ten non-permament members (with year of term's end):
Argentina (2006) Greece (2006) Qatar (2007)
Congo (Republic of the) (2007) Japan (2006) Slovakia (2007)
Denmark (2006) Peru (2007) United Republic of Tanzania (2006)
Ghana (2007)