| Answer | % Correct | |
|---|---|---|
| Impossible bars | ![]() | 100%
|
| Shepard elephant | ![]() | 100%
|
| Penrose stairs | ![]() | 67%
|
![]() | 67%
| |
| Impossible trident | ![]() | 67%
|
| Impossible waterfall | ![]() | 67%
|
| Impossible cube | ![]() | 33%
|
| Penrose triangle | ![]() | 33%
|
| Penrose circle | ![]() | 33%
|