Christianity, I guess
Islam
Most people in the middle east practice islam
Most Taiwanese practice a combination of Buddhism, Confucianism and Taoism.
Judaism (75%).
Islam
Christianity, which is the majority religion in all of South America.
Roman Catholic
The same as most of Europe: Christianity.
Most people in the US who profess any religion profess to be Christians. There are many denominations of Christianity in the US.
Most people in the Middle East today practice Islam.
They practice Roman Catholic religion
Christianity is the most practiced religion in Brazil