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Guessing Hats 1
Easy
Created: November 2, 2025
Try These Next
Medium
Coins on a Table
You and a friend want to settle who is the smarter of you two with a game. The game is played on a circular table, with you and your friend taking turns to put...
Medium
Proving Rules on Cards
On the table are 4 cards, each one labelled “A”, “D”, “3”, and “6” respectively. You know that every card has a letter on one side and a number on the other. I...
Easy
27 Cubes
A 9cm cube is to be cut into 27 smaller cubes, each of side length 3cm. This can be done with 6 straight cuts to the original cube: 2 parallel cuts along each...