In this online illusion
what is changing size, the cigarette or the grid it is rolling across.
Or maybe neither?
Work out this online visual illusion. How can a block be cut
from the bar of white chocolate and yet the block remains
complete? If you can work it out maybe you should open your
own very profitable chocolate factory as you will never run
out! Yes? No? Maybe both if you check out another
online illusion on your right!