19/24 - but there are some bloody silly questions in there!
For example, does it matter that people know exactly how many hours per week a 13-to-16-year-old can work? Surely what matters is that they know
(a) that there are restrictions ; and
(b) where to find out the exact rules (e.g. on the DirectGov website)
Further, does it matter that people know how many MPs there are? Isn't it more important to know how to get in touch with your MP (by writing to him/her at the House of Commons, by writing to the constituency address or through his/her website)?
And why on earth should it matter as to how many people under 20 years old in this country? What matters is that young people, and their parents, are aware of their rights and opportunities.
Again, why do people need to know that schools must open for a minimum of 190 days per year? If they've got young families what they really need to know is where they can find out the dates of the local school terms. (In schools' newsletters, on schools' websites, on local council websites, by phoning the schools or even by looking in some bus timetables!)