There are three tables in a room with blocks of chocolate on each. Where would be the best place for each child in the class to sit if they came in one at a time?
Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?
Find a great variety of ways of asking questions which make 8.
Find the number:
This problem is taken from the UKMT Mathematical Challenges.