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In this calculation, the box represents a missing digit. What could the digit be?

These watermelons have been entered into a competition. Use the information to work out the number of points each one was awarded.

Trinni rearranges numbers on a clock face so each adjacent pair add up to a triangle number... What number did she put where 6 would usually be?

Using a ruler, pencil and compasses only, it is possible to construct a square inside any triangle so that all four vertices touch the sides of the triangle.

In the ancient city of Atlantis a solid rectangular object called a Zin was built in honour of the goddess Tina. Your task is to determine on which day of the week the obelisk was completed.

Complete these two jigsaws then put one on top of the other. What happens when you add the 'touching' numbers? What happens when you change the position of the jigsaws?

Dip your toe into the world of quantum mechanics by looking at the Schrodinger equation for hydrogen atoms

Describe what Mona might be doing from these pictures of clocks which show important times in her day.