The shortest IQ test – only 3 questions, but 80% of people fail to solve them! Are you ready?

 

You've probably taken an IQ test at least once in your life - whether it's one published in a newspaper, online, or professionally administered. You'll probably be interested to know that the shortest IQ test in the world consists of just 3 questions, but it's a stumbling block for almost 80% of those who dare to take it!

3 short questions that say a lot about our IQ. At least that's what the author of the shortest IQ test thinks.

Only 20% manage it.

This intelligence test is the shortest of all time – it contains only three questions. It is called the “Cognitive Reflection Test” (CRT) and was developed by American psychologist Professor Shane Frederick, Deutsche Welle reports.

With his test, the professor aims to show the difference between impulsive and deliberate reactions. Frederick proceeds from two types of mental activity: “System 1” and “System 2.” In “System 1”, impulsive thinking prevails, while “System 2” is characterized by deep thinking.

To answer the three questions in Frederick's test correctly, it is System 2 that must be activated. And for it to be activated, a person must be able to quickly determine that an impulsive answer cannot possibly be correct. And this requires reflection on one's own abilities.

Here are the three questions that make up the IQ test prepared by Professor Frederick. By the way, only 20% of participants answer correctly. Check if you are among them!

Question #1:

A stick and a ball together cost $1.10. The stick is $1 more expensive than the ball. How much does the ball cost?

Question #2:

If 5 machines produce 5 things in 5 minutes, how long would it take 100 machines to produce 100 things?

Question #3:

A pond is partially covered with water lilies. The area covered by lilies doubles in size every day. If it takes 48 days for the entire pond to be covered with lilies, how long does it take for only half of the pond to be covered?

If you had trouble or just want to check your score, here are the correct answers:

The correct answers:

► The correct answer to the first question: 5 cents. Not 10 cents, as most people answer.

► The correct answer to the second question: 5 minutes. Not 100 minutes, as most people answer.

► The correct answer to the third question: 47 days. Not 24 days, as most people answer.