Feeling a bit sluggish after a few days off work? Why not give your brain an Easter-themed workout with this baffling optical illusion. Your challenge is to count how many eggs there are, but apparently only 95% of people can do itFeeling a bit sluggish after a few days off work? Why not give your brain an Easter-themed workout with this baffling optical illusion. Your challenge is to count how many eggs there are, but apparently only 95% of people can do it