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Are you convinced that your government is in contact with UFOs? Do you get the feeling that we are being watched? Then you are probably a believer in conspiracy theories.

Before you read the article, have a look at the glossary, which explains some of the more difficult words and expressions.

What links actresses Julia Roberts, Geena Davis and Holly Hunter? They all have twin children. You probably have some twins in your family or school – there are more of them about these days.