From Wikipedia: "Nigerians are almost equally divided into Christians and Muslims..." with small numbers of other minorities.
They practice Roman Catholic religion
Nigeria has one of the largest Muslim populations in West Africa, 50% of Nigeria's population
Islam
most are muslim.
Most countries do.
Jeid
Most people in the middle east practice islam
Most Taiwanese practice a combination of Buddhism, Confucianism and Taoism.
Islam
Christianity, which is the majority religion in all of South America.
Judaism (75%).
Christianity, I guess