IQ

Two-year-old boy joins the ranks of the world's smartest people.

A two-year-old British boy has become the youngest person to join Mensa – an international organization for people with IQs in the top 2% of the world's population.

The 10-year-old prodigy is smarter than both Albert Einstein and Stephen Hawking.

Krish Arora, 10 years old, from Hounslow (England) has an IQ of 162, surpassing even Albert Einstein or Stephen Hawking.

The puzzle is controversial; only 1% of people found the answer.

Below is a question designed to test intelligence; only those with extremely high IQs can find the answer.

The billiard ball puzzle seems easy but is incredibly difficult.

If you can find the number of billiard balls in a short amount of time, you're definitely an extremely intelligent person.

An IQ challenge puzzle everyone should try at least once.

If you can find the missing number in the puzzle below, you're definitely a smart person.

Finding the answer in 30 seconds makes you smarter than Harvard University students.

If you can find the answer to the IQ question below within 30 seconds, you are definitely a highly intelligent person, perhaps even more intelligent than Harvard University students.

Move one matchstick to make the equation correct.

The matchstick puzzle below has left many people struggling, thinking for hours without finding the answer. Solving it quickly is definitely a sign of a high IQ.

Only intelligent people can guess what kind of fruit this is.

Many people have given up on this picture riddle, how about you?

Can you guess which fruit is more likely to make you cry the heavier it is?

Many people are stumped because they can't find the answer to this riddle, how about you?

What animal has three heads, four legs, and one tail?

What a strange creature that is, do you know what it is?

A smart person can answer in 3 seconds: Which lip is the biggest?

This riddle tests your quick thinking and intelligence; are you ready to try it?

Anyone with high IQ would immediately recognize the thief in this picture.

You have 3 seconds to answer the question: Who is the thief among these four people?

Intelligent people will find the answer in just 5 seconds.

What do the two trees and an arrow remind you of?

90% of players give up: Accurately count the number of damaged suitcases in 20 seconds.

Can you spot how many damaged suitcases are in this picture?

The calculation sparked heated debate: Is the correct answer 2 or 18?

This calculation is very familiar to schoolchildren, but it still causes many adults to argue about whether the result is 2 or 18.

Can you move one matchstick to make the incorrect equation correct?

People with high IQs will be able to find the answer to this matchstick moving challenge in 10 seconds.

What has no legs, no tail, no body, but many heads?

Very few people can guess the answer to this riddle, can you?

Only those with 10/10 vision can see the feather for 10 seconds.

There's a feather hidden in this picture. Can you spot it in 10 seconds?

What word, when it loses its beginning, is a question, and when it loses its end, is an answer?

This riddle sounds simple, but it stumps many people.

How many girls are hidden in this picture?

Not everyone can find all the girls hidden in this painting, can you?

The problem is simple, but 90% of people answer it incorrectly.

This might seem like a simple problem, but it leaves many people confused about the answer.

What is a leg but has no legs?

This is a trick question, so try to think simply.

Very few people have seen the girl in this photo, have you?

There's a girl in this picture, but very few people can see her. Why don't you try to spot her?

Which market is meant for chewing?

This riddle has stumped many people, how about you?

A mind-bending puzzle that stumps many people.

Test your skills with this challenging IQ puzzle that has been causing controversy on social media recently.

Where is the letter W located?

Can you find the letter W in this "matrix" in just 5 seconds?

Nine out of ten people guessed wrong: What word is this?

Can you put the letters below together to form a meaningful word in just 5 seconds?

A person fluent in Vietnamese can recite this proverb in just 2 seconds.

If you're proficient in Vietnamese, you'd probably recognize this proverb immediately after reading the first few words.

Brain-teasing puzzle: How do you get a buffalo, a tiger, a sheep, and a bundle of hay across a river?

Move the buffalo, tiger, sheep, and bundle of grass across the river in such a way that the tiger cannot eat the sheep, and the sheep and buffalo cannot eat the grass.