Difficult online iq and logic test. Number of right answers correlates with your intelligence quotient. The test consists of 10 questions, each of them allows to estimate your logical abilities. A group of more than 2000 of students has been tested with this iq test to gather the best statistical data, according to statistics an average people can only answer correctly 2.8 of questions. Enjoy with this test if you like measuring your IQ tests score. This is one of those IQ tests, that are developed and validated by professional psychologists for checking of intelligence quotient of people from any social group.