Puzzle 1
Using the letters EEIIIISSSTTT complete this grid. The grid reads the same across as down.
| R | |||
| R | |||
| R | |||
| R |
Note: this puzzle is not interactive, and the squares cannot be clicked.
Puzzle 2
You have a very large number of generic plastic building blocks, each in the shape of a cube.
Think about how many cubes you would need in order to construct a giant cube with 16 small cubes along each edge.
If you were to then remove the outside layer, how many small cubes would you have removed?
Puzzle 3
Someone purchases 1 for 38p, 23 for 76p and 102 for £1.14.
What are they buying?
Puzzle 4
Can you make this equation correct by moving exactly one matchstick?

Note: this puzzle is not interactive, and the matchsticks cannot be moved. The matchstick layouts for each digit are: