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

Solved by preschoolers in 5 mins  8809 = 6 7111 = 0 2172 = 0 6666 = 4 1111 = 0 3213 = 0... more>>>  
Cars  What number is underneath the car?... more>>>  
Red and Blue Marbles  You have two jars, 50 red marbles and 50 blue marbles. A jar will be picke... more>>>  
Measuring water  ... more>>>  
The biggest area  A farmer challenges an engineer, a physicist, and a mathematician to fence off the largest amount... more>>>  
Backpacks and cats  There are 7 girls in a bus Each girl has 7 backpacks In each backpack, ther... more>>>  
Five Pirates  You have five pirates, ranked from 5 to 1 in descending order. The top pirate has the right to propo... 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>>>  
