Can I enter Mexico with a Cuban visa now?

Of course. Cuban visa can enter Mexico. United Mexican States (English: Mexico, USA; ; Spanish: LosEstadosUnidosMexicanos), referred to as Mexico, is a federal republic in North America. It borders the United States to the north, the Pacific Ocean to the south and west, the Caribbean Sea, Belize and Guatemala to the southeast, and the Gulf of Mexico to the east.