Optical illusions are visual puzzles designed to trick the human mind and challenge its ability to notice fine details. These ...

Matthew Thornton, 34, vanished close to the tourist hotspot Grasmere, in the Lake District, after setting off from a fell with a green smiley ... has a bright pink smiley face wearing sunglasses ...

It is not known was condition Matthew is in. The force previously released an image of his turquoise paraglider which has a bright pink smiley face wearing sunglasses on it in a bid to help locate ...