An optical illusion challenges viewers to find a subtle anomaly within a repeating pattern of the letters HJKL. The brain's ...

A viral number sequence puzzle challenges players to find the next number in “2, 6, 12, 20, 30, ?”. Test your analytical skills and see if you can solve it.

Being able to guess the correct pattern in a puzzle shows that your cognitive and mental abilities are sharp. Such puzzles help in improving problem-solving skills, boost your memory, promote ...

Today’s challenging puzzle is that in the sequence series of “101”, one number doesn’t belong in this sequence series. Can You Find It? So, if you think you're a genius with a 140+ IQ level, then find ...

Beat the clock by spotting the pattern in this brainteaser challenge. You'll see a row of different shapes but one shape is missing, replaced by a question mark. It's up to you to figure out what the ...

We employ a polychotomous version of Mokken Scaling Analysis to create an improved measure of government respect for a subset of human rights known as physical integrity rights. The scale we produce ...