Mathematical Problems

So you did well at Maths in school? How do you go with these mathematical brain teasers?

Total matches: 14
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Backpacks and catsThere are 7 girls in a busEach girl has 7 backpacksIn each backpack, there are 7 big cats .For every big... more>>>4 stars
Boys and GirlsIn 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>>>4 stars
Cars... more>>>4 stars
Five PiratesYou 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>>>4 stars
How would you weigh an aeroplane... more>>>3.5 stars
Measuring waterIf you... more>>>4 stars
Overlapping clock hands... more>>>4 stars
Red and Blue MarblesYou 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>>>4 stars
Socks in a drawerThere 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>>>3.5 stars
Solved by preschoolers in 5 mins8809 = 6 7111 = 0 2172 = 0 6666 = 4 1111 = 0 3213 = 0 7662 = 2 9312 = 1 0000... more>>>4 stars
The biggest areaA farmer challenges an engineer, a physicist, and a mathematician to fence off the largest amount of area using the least amount of fence.... more>>>4 stars
TrianglesWhich triangle has a bigger area:  A. A triangle with sides measuring 300, 400, and 500.  B. A triangle with sides... more>>>3.5 stars
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>>>4 stars
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>>>4 stars
Total matches: 14