There is a square of a particular number which when doubled, becomes 7 more than its quarter. Can you find the number?
What can you catch but never throw?
The more you take me, the more you leave me behind. Who Am I?
I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?
When can we add 2 to 11 and get 1 as the correct answer?
Prove that the below maths equation is true. 8 + 8 = 91
A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child. Where's the father?
Can you find the odd number in the following? 2716, 4135, 5321 and 7145
What two things can you never eat for breakfast?
A wooden log balances equally on the scales when weighed with three-quarters of a pound and three-quarters of a wooden log. Can you calculate the weight of the entire wooden log?
John said, "If yesterday was tomorrow, today would be Friday." When did John make this statement?
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
