What a delightful puzzle! Can you figure it out?
Thanks to The Math Less Traveled blog for this gem!
Random Walks
Mr. Chase blogs about math
What a delightful puzzle! Can you figure it out?
Thanks to The Math Less Traveled blog for this gem!
Random Walks 
well, technically, none of them are like the other. the second from the left is unlike all the others because it does not have the black border. the circle is different because it is not a square. the green square is different because it is not red, and the small square is different because it is smaller. therefore, the first square, the one on the far left, is also different because it has no unique defining characteristic, which is a paradox, but true nonetheless.