Mind trick / iFunny :) and it works with every number trust me I tried it. You add seven to a number then subtract the original number to get seven.
Rainbow Vortex | 13 Psychological Mind Tricks That Will Mess With Your Head
Funny how our brain works. I got it right the first time, but caught myself arriving at the wrong total somehow the second time lol
funny quote read every third word this is how you to keep an idiot busy for forty seconds cat this is cat
Click through to see this animated (gif) optical illusion. Cover the middle and you go faster, cover the outside and you go slower.
Perception: the ability to be aware of the things around us through our five senses (hear, feel, sense, touch and taste). Our perception of reality is influenced by others around us.
Funny pictures about You can change the direction using your mind. Oh, and cool pics about You can change the direction using your mind. Also, You can change the direction using your mind.