16 out of 24 in just over 24 minutes. I'm out.
BUT...I'm going to do something really silly and defend the test. People who want to go on construction sites take a similar test - for what's called a CSCS card. They study a book, which has perhaps 1000 question and answers, and they are asked, if I remember correctly, 50 questions. The 50 questions are fairly random - indeed I think the person in the booth next to you will be asked 50 different questions, but if you've spent the time studying the book you should get by.
In the case of the CSCS card the test questions are weighted according to your field - so Architects do 'Site Management' or something like that, while Electricians do 'Electrical Safety'. If you study the entire book you'll know a great deal of stuff that will add up to a far more comprehensive picture that you would have had without.
I don't know if the answers vary with the field - the answer to the question 'what do you do if you see someone attached to a blue cable, shaking, with smoke coming out of their ears' would presumably be - for the electricians - 'something clever with a bit of wood', but, for the designers 'scream for a gin and tonic before fainting'.
To go back to the test. I probably got the divorce question wrong. I do know that the Married Women's Property Act was passed sometime in the 1880s (it crops up in 'New Grub Street' by George Gissing) but I don't think it's a bad thing for new citizens to appreciate that women can divorce men, and have been able to do so for a very long time.
I think 'tso' is the Stationery Office