Four identical hexagons produce outlines of the 5 regular hexagons. What is the minimum set of actions to produce 6 regular hexagons?

Reduce the area of the 2×2 matchstick square in half moving the minimum number of matchsticks. What is the minimum?

How many equilateral triangles can be spotted on a regular die counting the centers of the respective pips?

Move one coin at a time to turn the pyramid upside down. An additional rule: always keep the three rows of three coins each.

Patrick, Paul, Peter and Phillip are drawing toothpicks. The one who has the shortest toothpick is “selected” for an action…

Which letters should be placed instead of the question marks in the two evergreens?