This tool randomly generates short practice exam papers. Currently, the maximum number of questions per paper is limited to 30, as this closely approximates the 300-minute Part Two written paper, and is probably sufficient for Primary exam candidates who are trying to torture themselves. Also, the server seems to crash with larger papers. The questions are chosen randomly and every paper will be different.
Hold down the [shift] key to select the range of topics and range of papers you are interested in, and hit the "CREATE PAPER" button. The resulting list of questions can be printed with or without the answers by toggling the visibility of the answers.