Puzzles, Tricks, and Illusions
The Box Puzzle: The most difficult drafting puzzle around. Can you solve it?
Trigonometry: So you think you're good at math?
Mate in three: Chess
Triangle area puzzle: Geometric objects occupying the same space do not change their area simply because you move them.
Zardoz can control your movements: Rotate your right foot and Zardoz will make it change direction.
Zardoz can read your mind: Pick any card and Zardoz will know what you chose.
Illusions: You can believe what you see all you want; certain two dimensional shapes can fool the mind.