What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?
There is a square of a particular number which when doubled, becomes 7 more than its quarter. Can you find the number?
What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?
John decided to give his bike 3 coats of paint. Which coat would go on the first?
Can you find the mistake in the below statement?
What is in seasons, seconds, centuries and minutes but not in decades, years or days?
f you were running a race, and you passed the person in 2nd place, what place would you be in now?
A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?
Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?
using four eights (8) and a one (1) and one mathematical symbol , create the number 100
There is a box full of marbles, all but two are blue, all but two are green, and all but two are red. How many marbles are in the box?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki
