The Doctor Who Quiz Books Of...

There were a series of largely educational quiz books published back in the early 80s. Written by Michael Holt, they featured the fifth Dr WHO and his assistants facing perplexing problems based around such themes as 'Space', 'Dinosaurs' and 'Magic'. Most of them ended up in remainded book shops as we Dr WHO fans didn't buy them much. 

Here's some modern versions that are themed around more relevant 21st century subjects...