Weekly Problem 16 - 2012
If the odd numbers on two dice are made negative, which of the totals cannot be achieved?
Weekly Problem 47 - 2013
What is the value of the given expression?
Weekly Problem 49 - 2013
What is the value of 2000 + 1999 × 2000?
Weekly Problem 50 - 2013
Each letter in this sum represents a different digit. How many solutions are there?
Given that the number 2008 is the correct answer to a sum, can you find n?
A class raises money for charity by placing 10p pieces edge to edge in a 'silver line'. If the line was 25m long, how much money did they make?
Weekly Problem 16 - 2009
Arrange these three famous mathematicians in order with the shortest-lived first.
Weekly Problem 17 - 2009
How far apart are the first and last bus stops in this bus route?
Weekly Problem 18 - 2009
How much lighter will £5 worth of 5p's be with these new lighter coins?
Weekly Problem 24 - 2009
Each letter stands for a different digit, and S is non-zero. Which letter has the lowest value?
Weekly Problem 2 - 2010
Can you solve this 'KANGAROO' alphanumeric subtraction?
Weekly Problem 14 - 2010
What is the largest number of digits that could be erased from this 1000-digit number, to get a surprising result?
Weekly Problem 21 - 2011
How many ways can you paint this wall with four different colours?
Weekly Problem 26 - 2011
Alberta won't reveal her age. Can you work it out from these clues?
Weekly Problem 32 - 2011
What could be the scores from five throws of this dice?
Weekly Problem 33 - 2011
How many solutions can you find to this sum? Each of the different letters stands for a different number.
Weekly Problem 12 - 2014
Two of the numbers in a 4x4 magic square have been swapped. Can you work out the sum of these numbers?
Weekly Problem 44 - 2014
What symbol should be inserted to make the equation true?
Weekly Problem 2 - 2015
Can you work out the sum of the missing digits in this subtraction?
Weekly Problem 50 - 2015
Can you work out the values of J, M and C in this sum?
Weekly Problem 19 - 2016
"It would take 20 million years to fill Morecambe Bay from a bath tap". What does this imply is the approximate capacity of Morecambe Bay?
Weekly Problem 37 - 2016
By drawing 5 horizontal and four vertical lines, one can form 12 rectangles. What is the greatest number of rectangles that can be formed by drawing 15 lines?
Weekly Problem 42 - 2016
What is the remainder when 354972 is divided by 7?
Weekly Problem 6 - 2017
In the multiplication table on the right, only some of the numbers have been given. What is the value of A+B+C+D+E?