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Sweet Shop

Five children went into the sweet shop after school. There were choco bars, chews, mini eggs and lollypops, all costing under 50p. Suggest a way in which Nathan could spend all his money.

Children at Large

There are four children in a family, two girls, Kate and Sally, and two boys, Tom and Ben. How old are the children?

Not a Polite Question

When asked how old she was, the teacher replied: My age in years is not prime but odd and when reversed and added to my age you have a perfect square...

All Square

Age 11 to 14 Challenge Level:

Solve the system of equations

$$\begin{eqnarray} xy &=& 1 \\ yz &=& 4 \\ zx &=& 9 \end{eqnarray}$$.