Answer:
Demons are evil spirits that try to harm living people. Ive never seen one but i have on tv and they do not look like they are kind at all. They are very scary and anger gives them more power. The best way to get rid of them is to get a blessing on your house and if that doesnt work you must get an exorcism immediately before you or somebody gets really hurt.
demons are considered to be evil power that exists.they are said to put a man in the wrong path when he is confused on what to do.if the man is well decided in his decission then he might not fall into the trap of the demon or the devil.demon is also called Satan "the evil"
Demons are also known as "fallen angels" who, with Lucifer, rebelled against God.
Another Response:
Demons appear in the mythology of most cultures as personifications of evil forces. In their efforts to understand and control natural forces and enemies in their lives, pre-scientific peoples (and people who resist rational thought today) adopt belief in demons. Demons have no reality outside the imagination of persons who believe in them, but to those persons, demons can be quite real and very harmful.