why number 8549176320 is one of a kind?
Solve the below puzzle by replacing the question mark with the correct number. 3 6 12 4 8 16 5 10 ?
It's a test that will check your IQ. Suppose you have one 11 minute hourglass and one 13 minute hourglass. Can you measure exactly fifteen minutes using them ?
You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?
In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat. Can this even be possible?
Which wheel of car does not rotate when you turn your car right?
Why is 6 afraid of 7?
Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3. (You can use one number only once)
Why Aeroplane windows are round?
What always comes into a house through the keyhole?
Can you spot the man between the coffee bean in the picture below ?
In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.