 540x420 55kb | Can You Spot The Black Dot
 492x378 29kb |
| |
 415x416 11kb |
 348x449 29kb |
| |
Is One Red Ball Really Larger
 320x248 41kb | Is One Monster Really Bigger
 196x259 27kb |
| |
Looks Like A Spiral, But They Are Really Concentric Circles
 227x215 28kb | Which Direction Is The Rotation
 243x110 31kb |
| |
Is The Book Facing Toward You Or Away From You
 146x176 3kb | The Long Lines Really Are Parallel
 137x103 2kb |
| |