Can you move 4 matches to create a house?
See pic below:
Better one:
Move 6 matches to create 2 squares.
Can you move 2 matches to make it valid? There are at least 2 answers.
Here is a hexagon using 6 matchsticks. Move 4 matchsticks to create 2 triangles.
Can you move 3 matchsticks to create 3 regions and separate the coins into 10, 30 and 50 cents?