If you can't see the quiz above you can click here to take it.
If you think children aren't smart you may want to think again as this quiz, which replicates the questions for pupils trying to get into grammar school, contains a few teasers which might well trip you up.
The mock exam includes a variety of topics and will require an understanding of the English language, mathematics and geometry to successfully complete. While they're example of the questions pre-teens could face in an exam, that doesn't mean they are easy.
Some of them may leave you scratching your head and trying to remember when you last used these grammatical and mathematical techniques. Give the quiz a go and let us know how well you did in the comments - or feel free to keep schtum if you didn't get a passing mark.