So you did well at Maths in school? How do you go with these mathematical brain teasers?
Title | Detail | Rating | |
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Measuring water | ... more>>> | ||
The biggest area | A farmer challenges an engineer, a physicist, and a mathematician to fence off the largest amount of area using the least amount of fence.... more>>> | ||
Backpacks and cats | There are 7 girls in a busEach girl has 7 backpacksIn each backpack, there are 7 big cats .For every big... more>>> | ||
Socks in a drawer | There are 30 socks in a drawer. 60% of the socks are red and the rest are blue. What is the minimum number of socks that must be taken from... more>>> | ||
Five Pirates | You have five pirates, ranked from 5 to 1 in descending order. The top pirate has the right to propose how 100 gold coins should be divided among... more>>> | ||
What is the sixth number? | It is said that designers take 10 seconds to resolve this, engineers take 3 minutes, architects 3 hours and doctors 6 hours. You have... more>>> | ||
Red and Blue Marbles | You have two jars, 50 red marbles and 50 blue marbles. A jar will be picked at random, and then a marble will be picked... more>>> | ||
Boys and Girls | In a country in which people only want boys, every family continues to have children until they have a boy. If they have a girl, they... more>>> | ||
Overlapping clock hands | ... more>>> | ||
Solved by preschoolers in 5 mins | 8809 = 6 7111 = 0 2172 = 0 6666 = 4 1111 = 0 3213 = 0 7662 = 2 9312 = 1 0000... more>>> | ||
Where is the father? | A mother is 21 years older than her child. In 6 years time, the mother will be 5 times older than the child. Question: Where... more>>> | ||
Triangles | Which triangle has a bigger area: A. A triangle with sides measuring 300, 400, and 500. B. A triangle with sides... more>>> | ||
How would you weigh an aeroplane | ... more>>> | ||
Cars | ... more>>> | ||
Place between 3 and 9 | ... more>>> |
The Brain Teasers was formed in 2008 with the aim of providing a good collection of riddles, brain teasers and other challenging problems for you to solve!