People do not think. That is why they believe in cult. They are easy to brainwash.
Some are Freemasons and Satanics are very evil and worship evil but rarely practice but they are very still evil
Satanism/Luciferian/Devil Worship
Sun Worship
They are uncounted.
You can worship God any day of the week and it will still Sabbath. Sunday is the day that people go to church.
Not everyone stopped believing in Him. There are still quite a few people that believe in and worship Him.
Jewish and Christian people still worship the God of Abraham, Isaac, and Jacob. Many people who were pagan religions in the past worshipped false idols and icons.
Not sure who "they" are but there can be no secrets from him. Occult is simply magical practices or or rituals. There are some routinely done as part of worship and those that beleive look to him to perform whatever magic they need in their lives
Yes, Aphrodite is worshiped at times among Hellenic polytheists.
Most still claim to be some sect of Christianity.
Although the Angkor Wat is now a very popular turist attraction, Cambodian still use it as a place of worship.
Yes, some people do still believe in the Greek Gods, although their worship is not as widespread as it once was.