Funny beliefs/superstitions/customs 

1) Kings of Nepal were considered by followers to be an incarnation of the Hindu god Vishnu.

2) According to Hindu Mythology, eclipses are caused due to Demons Rahu and Ketu eating sun/moon.

3) Muslims men believe they will be awarded with 72 virgins after they die as a martyr.

4) Christians believe the world is only 6000 years old.

Please add to the list...