maybe if you're tired, and turning in for the night;
something might look 'different' than it usually does,
the lines are softened, a little like fuzz.
Or doing heavy reading, did you just yawn?
Or me doing reading way before dawn;
things aren't always just what you see,
your eyes and brain can trick you, how can that be?
So take a look at these illustrations, look close and try,
to see if they fool you, of if you've got a good eye;
some of them are tricky, but they've been around,
you may already have an answer. Let's take a look around.
How many people in this illustration? |
Duck or rabbit? |
Old or young woman? |
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