100-min test then 1 interview
2 logic-based questions.
Book-reading.
No
Remember this advice isn't official. There is no guarantee it will reflect your experience because university applications can change between years. Check the official Cambridge and Oxford websites for more accurate information on this year's application format and the required tests.
Also, someone else's experience may not reflect your own. Most interviews are more like conversations than tests and like, any conversation, they are quite interactive.
I had a 100 minutes
2 logic based questions. One was a logic problem about filling up buckets of sand. Then there was a second question which was the use of water pipes as logic gates and how make different “circuits” with them.
I read a book called “Code”.
No.