Need Some Clarifications

in order:

1. yoruba, igbo, edo, hausa are tribal groups in nigerian. the reside in different parts of the country and their tribal name is also their language. i.e. yoruba is a lauguage that the yoruba speak, igbo is what the igbo speak, and so forth like that.
2. not sure
3. i guess i depends on the area you are from. some areas are better or worser than others so i guess i'll give it a 5 or 6. others may have different opinions.
4. of course. nigerians are rearly shy. they like meeting and getting to know someone.
5. it means master or man.
6. i would give you 2 answer. fufu being that evryone eats that and jallof rice since we are known for eating that. for colours, if talking about our flag, is green, white, green going vertical.
7. not really. i guess it depends on that persons culture, area, and family tradtion.

hoped i answered your questions good. feel free to ask more questions.