The Fitbit Flex is an activity tracker aimed at measuring your exercise, diet and sleep. The device was my constant companion for about a week, and by the end of it, I felt informed about my activity levels, and was motivated to get moving.
Whether we like it or not, we're constantly judging the intelligence of others, estimating their level of competence by evaluating their responses to our questions. Some people are better at detecting intelligence than others, but that doesn't mean you can't learn how. With practice, you should be able to gauge the intelligence of others with a decent degree of accuracy, though you should always be prepared for surprises.
A well-written IQ test should test not a person's knowledge but their ability to learn. The main goals of an IQ test are to measure a person's spatial ability, mathematical ability, language ability and memory ability. A person with an IQ between 90 and 110 is considered to have average intelligence. A score over 130 indicates an outstanding level of intelligence, while a score below 70 indicates potential mental retardation.