No, Croatia is not further west than the prime meridian (zero degrees latitude).
Yes, Croatia is further east than the prime meridian (zero degrees latitude). The midpoint of Croatia is further east by approximately 400 miles (644km).
Yes, Croatia is further north than the equator. The midpoint of Croatia is further north by approximately 3,116 miles (5,015km).
No, Croatia is not further south than the equator.