Search

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.

Can you work out how to win this game of Nim? Does it matter if you go first or second?

The Number Jumbler can always work out your chosen symbol. Can you work out how?

Each clue in this Sudoku is the product of the two numbers in adjacent cells.

How many moves does it take to swap over some red and blue frogs? Do you have a method?

Can you crack these cryptarithms?

Four friends must cross a bridge. How can they all cross it in just 17 minutes?

Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?

Can you use the numbers on the dice to reach your end of the number line before your partner beats you?