The Cognitive Reflection Test has a pass rate of just 17 per cent, leaving the majority who attempt it boggled.

Most things in this world have their good points and their not-so-good points, and this is certainly true of “The Copenhagen ...

A child's innocent Christmas Eve call to track Santa turned awkward when President Donald Trump praised an eight-year-old's ...

A Reddit user believes her husband isn't attracted to her anymore after she scored higher than him on an online IQ test.

GPT-5.2 tops Mensa Norway practice puzzles; tracking dashboards show gains, and XOR-style visual logic explains wins.

The U.S. Supreme Court heard arguments this week in a death penalty case in which the defendant’s school records from more than 40 years ago are playing a key role. In that case, Justice John Paul ...

In Hamm v. Smith, the Supreme Court will consider how IQ tests can be used to determine when an individual with an intellectual disability may be spared from the death penalty. Authors’ note: The ...

In 2002, the Supreme Court ruled in Atkins v. Virginia that the Constitution’s ban on cruel and unusual punishment bars the execution of people who are intellectually disabled. Next week, on Wednesday ...