How intelligent are you? This is the shortest intelligence test with just three questions.

Tou submit to an intelligence test should not be laboring with a marathon of questions.

This is because experts have compiled the world's shortest intelligence test, which consists of only three questions.

Yes, you can submit to this test immediately and praise your friends in just 30 minutes.

Otherwise, this test was conducted by psychologist Shane Frederick in 2005.

These are the three difficult questions:

1: A baseball bat and a ball together cost $1.10. Stick costs one more dollar than ball. How much is the ball?

2: If it takes five cars five minutes to make five certain equipment, how long would it take 100 cars to make 100 equipment?

3: There's a bunch of flowers in the lake. Every day, the cluster doubles in size. If it takes 48 days for the flower mass to cover the entire lake, how long does it take to cover only half the lake?

These are the answers:

1: The ball costs five cents. You probably thought 10 cents, didn't you? We're not judging you. The ball costs five cents plus a baseball bat that costs $1.05 and the total is $1.1.000.

$1.05 is exactly $1.5 more expensive than five cents. Otherwise, a study by Princeton has found that people who answer by 10 cents are evidently less patient than those who find the correct answer.

2: 100 cars would take you five minutes to make 100 equipment. You might think the correct answer is 100 minutes, but you're wrong. From the question, we know that a car needs five minutes to make one device. As a result, it takes five minutes for 100 cars to make 100 equipment.

3: The cluster of flowers would cover half the lake for 47 days. You may have thought 24 days, but you're wrong. If the lake area covered by flowers doubles daily, it would take only one day to cover it completely by half. So one day out of 48 and you're 47 days away.