These quizzes seek to test your IQ by asking you various challenging questions about all kinds of subjects. Take each quiz to find out if you're a genius (I bet you are). Time to test your vocabulary ...

Brain teaser puzzles test the reader's critical thinking and problem-solving skills by challenging them to solve a problem.

Brain teasers are great for improving your problem-solving skills, critical thinking skills, memory, and concentration. These riddles offer mental stimulation, as these require strategic approaches to ...

ChatGPT is the first nonhuman subject I have ever tested. In my work as a clinical psychologist, I assess the cognitive skills of human patients using standardized intelligence tests. So I was ...