This eagle appears to either be propelled by its own twin jet engines or suffering from a seriously gassy case of wind (maybe it ate one too many mice the night before?). It is, of course, actually merely flying in front of an aeroplane's vapour trails.
19. Owl In Your Coffee
The result of dropping two Hula Hoops (round, crispy potato snacks for those not in the know) in to a mug can create the optical illusion that an owl is looking up at you from your drink. Who knew?
18. Big (Front) Wheel
Although this is clearly a staged photograph, the illusion of replacing this bicycle's missing front wheel with a large big wheel ride through the use of perspective is indeed a very clever one.
17. The Victim Of An Axe-Murderer
This sunbathing lady probably wasn't expecting an axe to be driven in to her head while she sought to get a tan. Fortunately, she didn't get one - it's merely an illusion created with the fact that the axe is wedged in to a log just behind where she's laying!