Good Problems was created in 2007.
Luxury Problems was created in 2005.
Nobody's Problems was created in 1971.
The Problems of Philosophy was created in 1912.
Inverse Problems was created in 1985.
Welfare Problems was created in 2003.
The Thirteen Problems was created in 1932-06.
The Study of the Negro Problems was created in 1898.
Social Problems - journal - was created in 1953.
Little Problems was created on 1989-02-12.
Hot Problems was created on 2012-04-15.
Problems of Post-Communism was created in 1954.
Dog Problems was created on 2006-05-19.