This is part of our collection of Short Problems.
You may also be interested in our longer problems on Conjecturing and Generalising.
problem
Bishop's Paradise
Age
11 to 14
Challenge level
Weekly Problem 37 - 2013
Which of the statements about diagonals of polygons is false?
problem
Counting Fish
Age
14 to 16
Challenge level
I need a figure for the fish population in a lake. How does it help to catch and mark 40 fish?
problem
Little Difference
Age
14 to 16
Challenge level
What is the value of $2015 \times 2017 - 2016 \times 2016$?
problem
Producing an Integer
Age
14 to 16
Challenge level
Multiply a sequence of n terms together. Can you work out when this product is equal to an integer?
problem
Super Computer
Age
14 to 16
Challenge level
What is the units digit of the given expression?