Kate has eight multilink cubes. She has two red ones, two yellow, two green and two blue. She wants to fit them together to make a cube so that each colour shows on each face just once.
Use the information about Sally and her brother to find out how many children there are in the Brown family.
As you come down the ladders of the Tall Tower you collect useful spells. Which way should you go to collect the most spells?
You have two sets of the digits 0 – 9. Can you arrange these in the five boxes to make four-digit numbers as close to the target numbers as possible?
Can you use the information to find out which cards I have used?
Can you see how these factor-multiple chains work? Find the chain which contains the smallest possible numbers. How about the largest possible numbers?
These Stage 1 and 2 problems haven't been solved yet. Why not take a look?