DrivePass is free practice for driving licence tests online. It includes all 1,136 official questions from the Czech Ministry of Transport, split into 7 exam topics, from traffic rules to road signs, and here on the website they are in English. The mock test has the same format as the official test: 25 questions, 30 minutes and a pass mark of 43 out of 50 points. Smart repetition brings back the questions you find difficult, just when you are about to forget them. Your progress is saved even without registration, and after you sign in it carries over to your account on the website (and to the iPhone and iPad app). The exam itself is taken in Czech. You'll find an overview of all topics with sample questions on the page driving licence tests.