IQ tests are divided into three levels of difficulty. Each free online IQ test is unique; you won’t be given the same test twice, except maybe for some IQ questions that may appear again (because each question, respectively, each test is generated through programming algorithms).
When going through the IQ test quiz you can click on the 'Next' button which will take you to the next question. The information about the test status reffers to: the correctitude of the answers, how many IQ questions you have answered, the number of correct answers, the number of wrong answers, and a graph expressing the percentage of exercises solved from the total number of exercises.
The test has 20 IQ questions and its purpose is to measure your mathematical intelligence. My IQ is measured depending on the number of questions solved correctly and the time in which the test is finished. The online IQ test result has 7 levels of intelligence , the better and faster you give your answer there are more chances of getting a better result.