A survey last year showed that just 16% of parents scored full marks in the 11 Plus exam.
With the tests taking place shortly after the summer holidays children and parents taking the 11 Plus are starting to prepare.
A quarter failed to achieve even half marks - a testament to the level of ability and skill that is required to pass the exams.
The 11 Plus style exams cover a range of styles of questioning including verbal reasoning, non-verbal reasoning, numerical reasoning and literacy skills.
So are you as smart as an 11-year-old? Take our quick test to find out.