Logic Problems:

Rush Hour Listening

Grid-based Logic

Syd hated sitting in rush hour traffic. He saw it as a horrible waste of his time. To make the best use of his time, he listened to audio books in the car. He discovered that...

BRYLine:

Expert 3

Logic: Shapes & Colors

Fill out all the cells in the line with the nine colored shapes, one shape per cell, in accordance with the clues

Geomatrix:

Intermediate 5

Geometry & Deduction

Discover which one of the four dots surrounding a given letter is in fact the real one so that when all dots are assigned, all the clues are satisfied

Cut-Outs:

The Flexa-Cube-Tube

DIY, Hands-on

Cut out the pattern, glue the flap to the patten’s opposite end get… the cube-like tube. Now, folding along the pre-creased lines…

Matchsticks:

The Mountain

Segment-based geometry, hands-on

Eleven matchsticks are arranged into the shape of an isosceles triangle. An isosceles triangle is a triangle that has two sides of equal length...

Puzzle Stories:

Elevator Exercise

Deduction, Reasoning, Spatial

Larry lives on the 50th floor of a skyscraper. He gets up very early—earlier than anyone else in the building—and, obviously, must reach the ground floor to go to work. Naturally, he uses the elevator, but at the hour he wakes up, the elevator is always on the ground floor...

Kolocells:

Expert 3

Logic: Colors

An arrangement is composed of an even number of circles. Paint each circle in one of the three prime colors in accordance with the clues provided