Mathematical Problems
So you did well at Maths in school? How do you go with these mathematical brain teasers?
Title  Detail  Hits  Rating 

Five Pirates  You have five pirates, ranked from 5 to 1 in descending order. The top pirate has the right to propo... more>>>  
Red and Blue Marbles  You have two jars, 50 red marbles and 50 blue marbles. A jar will be picke... more>>>  
Triangles  Which triangle has a bigger area: A. A triangle with sides measuring 300, 400, and... more>>>  
Cars  What number is underneath the car?... more>>>  
Backpacks and cats  There are 7 girls in a bus Each girl has 7 backpacks In each backpack, ther... 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 minim... more>>>  
What is the sixth number?  It is said that designers take 10 seconds to resolve this, engineers take 3 minutes, architects 3... more>>>  
Boys and Girls  In a country in which people only want boys, every family continues to have children until t... more>>>  
Overlapping clock hands  How many times do the two hands on a clock overlap every day? ... more>>>  
Where is the father?  A mother is 21 years older than her child. In 6 years time, the mother will be 5 times ol... more>>>  
