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logic puzzles and riddles,
puzzling riddles,

science puzzles
and
math puzzles and riddles.

Answers and detailed solutions are included.

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# Platonic solids - math puzzle of the day

Show that there exist only five platonic solids (that are objects which are build out of the one sort of regular polygons, like the tetrahedron and the cube). Hint: use that for each solid in three dimensions it holds that the number of vertices + the number of faces is equal to the number of edges + 2. |

# Pzzls top 10

Pzzl

Category

Difficulty

logic puzzle

math puzzle

3. Lockers

math puzzle

logic puzzle

5. Sky theory

science puzzle

logic puzzle

7. The superstitious president

logic puzzle

math puzzle

logic puzzle

10. Planting trees

logic puzzle