Can you work out the probability of winning the Mathsland National Lottery?
Which numbers can we write as a sum of square numbers?
Six samples were taken from two distributions but they got muddled up. Can you work out which list is which?
In this follow-up to the problem Odds and Evens, we invite you to analyse a probability situation in order to find the general solution for a fair game.
Can you explain what is going on in these puzzling number tricks?
A 1 metre cube has one face on the ground and one face against a wall. A 4 metre ladder leans against the wall and just touches the cube. How high is the top of the ladder above the ground?
Can you create a Latin Square from multiples of a six digit number?
A 2-digit number is squared. When this 2-digit number is reversed and squared, the difference between the squares is also a square. What is the 2-digit number?
An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?
Here is a Sudoku with a difference! Use information about lowest common multiples to help you solve it.
