No
No, they do not share a common boundary.
Four states in Nigeria share a boundary with Cameroon. These states are Adamawa, Taraba, Cross River, and Akwa Ibom. The border between Nigeria and Cameroon is significant for trade and cultural exchange between the two countries.
Yes they share a border.
Yes, they do, on the west of Zambia.
Adjacent time zones are time zones that share a common boundary, just as adjacent countries share a common border and adjacent apartments share a common wall.
They share a common maritime boundary.
Texas Arizona California & New Mexico as they share the Mexican boundary in common however they also share it in common with half a dozen Mexican states so it should be noted that the question & answer are defective in this regard moreover the question probably does not intend this answer at all but rather appears to refer to a single boundary point known as the four corners which is shared in common by Utah Arizona Colorado & New Mexico so it should also be noted that a boundary & a boundary point are not quite the same thing since a boundary is generally defined & considered as a line rather than only a single point
Not they do not share a boundary, they are on opposite sides of Africa.
Yes. Algeria shares its eastern border with Libya's western border.
no
No.
Nepal