1.   In India, the caste system, illegal but flourishing, assigns people to social strata as a result of their birth.

2.   Gambling is illegal but nevertheless extremely popular In Taiwan.

3.   In several other countries, including Sweden, Germany, Austria and Norway, prostitution is not illegal but brothels or pimping are banned.

4.   The Muslim Brotherhood, which technically is illegal but remains a force in Egyptian politics, did not publicly back any candidates.