It should take you less than 20 seconds to do this .... At the end of this post, you will be asked a question. Answer it immediately. Don't stop and think about it. Just say the first thing that pops into your mind. Now - just follow the instructions as quickly as possible. Do not go to the next calculation before you have finished the previous one. You do notever need to write or remember the answers, just do it using your mind. You'll be surprised.... Start: How much is: 15 + 6 21 3 + 56 59 89 + 2 91 12 + 53 65 75 + 26 101 25 + 52 77 63 + 32 95 I know! Calculations are hard work, but it's nearly over ... Come on, just one more! ... 123 + 5 128 QUICK! THINK ABOUT A COLOR AND A TOOL! Scroll further to the bottom ... A bit more ... You just thought about a 'red hammer' didn't you? If this is not your answer, you are among 2% of people who have a different, if not abnormal, mind. 98% of people answer a 'red hammer' while doing this exercise. edit: My answer was blue hammer, btw.