Hotline: 0855.911.911 
RSS 
Move one matchstick to make the calculation as accurate as possible.
By moving just one matchstick, can you turn an incorrect calculation into a correct one in a few seconds?
When is 4 ÷ 3 = 2 without making a calculation error?
Everyone thought this calculation was wrong at first glance, but the more they reasoned, the more surprised many were to find that the answer was not simple at all.
Why does 99 + 9 divided by 9 equal 100? This math puzzle has baffled many people.
A seemingly simple calculation has sparked much debate because of its unexpected result of 100.
Brain-teasing math puzzle: Which is heavier, 1 kg of cotton or 1 kg of iron?
A seemingly simple elementary school math puzzle, yet many people get it wrong. 1 kg of cotton and 1 kg of iron – which answer would you choose?
Don't rush to use your calculator; solving this problem correctly will make you a 'master'.
Consisting only of familiar multiplication, division, and parentheses, this calculation looks simple at first glance, but it's easy for people to overlook the order of priority.
How long would it take you to move one matchstick to make the math problem correct?
This seemingly easy puzzle has prompted many to reconsider their observational and mathematical reasoning skills.
The matchstick riddle: 'Nine out of ten people get it wrong'
Using just a few matchsticks arranged to form a familiar mathematical equation, the following riddle has left many people pausing to think.
Mystery puzzle: Can you find the answer in 10 seconds?
At first glance, it's just a few familiar numbers arranged simply, but this math puzzle makes many people stop and think.
A bizarre math puzzle is baffling the online community.
No longer the familiar addition problem from textbooks, this puzzle forces viewers to think in a different direction.
A primary school math problem goes viral on social media, leaving parents stumped.
At first glance, it seems like a simple exercise for elementary school students, but this number-filling puzzle makes many adults pause and think for quite a while.
The calculation that 99% of players answer incorrectly.
Many argue that the result of the calculation is "too obvious," while others assert that most people are making a mistake by overlooking a basic elementary math rule.
By moving just one matchstick, could the equation 9 + 9 = 11 be correct?
At first glance, this matchstick calculation is clearly wrong, but by moving just one matchstick correctly, the result will surprise you.
Just move one stick to solve this 'brain-twisting' math problem, have you figured it out yet?
It sounds easy, but in reality, many people stare at it for a whole minute without finding it.
The controversial IQ question: Who has the highest IQ?
This puzzle will definitely give you a good idea of how intelligent you are.
99% of players answered incorrectly, what about you?
Many players gave up because they couldn't find the correct answer to the counting challenge.
In 15 seconds, can you find the digit hidden behind the question mark?
If you can find the hidden digit behind the question mark in just 15 short seconds, your IQ is definitely not ordinary.
An extremely easy math problem sparks debate among netizens over the correct answer.
Try your hand at this simple math puzzle and see if you can find the answer.
How many days would it take a snail to climb a 13-meter tree?
This snail puzzle has stumped many people.
Move one matchstick to make the equation 8 + 3 - 4 = 0 correct.
A math puzzle shared online has attracted a lot of attention; it seems simple but can stump even those with the highest IQs.
A mind-bending question left four contestants on the "Road to Olympia" competition defeated.
The probability question in the "Road to Olympia" program was certainly not simple; all four contestants failed to find the correct answer.
Move one matchstick to make the equation correct.
This calculation is incorrect; please move one matchstick to make it correct.
A seemingly simple question on the "Road to Olympia" competition knocked out four contestants.
The question seemed simple, but it stumped all four contestants in the "Road to Olympia" program.
All four contestants in the "Road to Olympia" competition were stumped by the 5th-grade math problem.
This riddle from the "Road to Olympia" program will surely stump many people.
The problem of calculating the train's speed is so difficult even for a math genius.
Test your intelligence with this speed puzzle.
Move 2 matchsticks to create the largest possible 3-digit number.
It may seem simple, but not everyone can find the answer to this question.
With four 5s, how can you get a result of 16?
How can just four 5s, without adding or subtracting anything, give the answer 19?
Which coin will hit the bottom of the bucket first?
This puzzle will test your intelligence and understanding; find the answer in the shortest time possible.
Only a math prodigy could find the answer.
Whoever finds the answer to this question must surely be a mathematical prodigy of Vietnam.
Challenge: Count the weight of 3 animals
This problem will definitely be very easy if you are good at calculations and reasoning.
Three addition problems that even the best math students would struggle with.
This math puzzle requires you to observe, reason, and calculate quickly to find the answer.
News
