This is a book aimed at testing the general knowledge of school children from the ages of seven years upwards. It was published in 1927 and as you may expect contains a great may references to current affairs at the time, which could easily be skipped if testing later generations, although may questions are still relevant even today.
The test papers are split into age groups; and, there are specific papers on:

-General knowledge
-Nursery Rhymes
-The Bible
-Games and Sport
-Fairy Stories
-History
-Natural History
-Literature
-Puzzles, Riddles, Proverbs and Tongue twisters.

My wife and I had a great deal of amusement testing ourselves, even though we were both born forty years after the book was first published! We have not yet tried it on our own children, although it would be interesting to see the results.

However, it must be mentioned that some of the questions could have been phrased slightly better; and, to add to the frustration, some questions ignored other correct answers except that which the author was expecting. Not to mention a few answers that were technically wrong or based on hearsay.

Overall a good brain teaser worth plucking off of the bookshelf once in a while just to keep yourself on your toes if you can still find a copy.