No, Niger is not further west than the prime meridian (zero degrees latitude).
Yes, Niger is further east than the prime meridian (zero degrees latitude). The midpoint of Niger is further east by approximately 501 miles (806km).
Yes, Niger is further north than the equator. The midpoint of Niger is further north by approximately 1,217 miles (1,958km).
No, Niger is not further south than the equator.