Does apple offers delivery to Nigeria address

Apple does not appear to have an online presence in Nigeria. You can find an authorized dealer at: Where to Buy - Apple (NG)

The answer is no. You cannot order directly from Apple to be delivered in Nigeria.

Not really. Apple devices made for distribution in other countries wouldn't be distributed official by Apple to Nigeria. Not sure about the gray market, but there should be "Authorised Resellers" in Nigeria.