### Instant Insanity

Given the nets of 4 cubes with the faces coloured in 4 colours, build a tower so that on each vertical wall no colour is repeated, that is all 4 colours appear.

### Magic Caterpillars

Label the joints and legs of these graph theory caterpillars so that the vertex sums are all equal.

### Plum Tree

Label this plum tree graph to make it totally magic!

# W Mates

##### Stage: 5 Challenge Level:

Replacing the sequence of natural numbers $n$ from $1$ to $9$ by the numbers $10-n$ gives the numbers $1$ to $9$ in reversed order