It`s very old but maybe some of you don`t know it.. Go to someone and ask him to answer your quistions very quickly.. And then ask him the following quistion: 1+1? 2+2? 4+4? 8+8? 16+16? 32+32? 64+64? 128+128? pick number between 5 and 12?
You supposed to ask these quistions to another person..find someone near you and ask him..pick someone from the street but don`t freak him out,first give him cookies or something so he trusts you.
Go to someone and ask him to answer your quistions very quickly..
And then ask him the following quistion:
1+1?
2+2?
4+4?
8+8?
16+16?
32+32?
64+64?
128+128?
pick number between 5 and 12?
He will answer 7.