logic puzzles

A collection of math logic puzzle, arranged by level of difficulty. Includes solutions.

Describes how little details around you can help solve mysteries and come up with new ideas.

A collection of fifty logic puzzles, most set in story form, arranged chronologically by order of difficulty from relatively simple to complex.

A collection of thirteen short mystery stories featuring the American Girls that asks the readers to find answers using the clues in the stories.

Explores concepts related to magnetism and electricity, and presents puzzles and activities designed to help children understand how these forces and sources of energy work.