It's kind of weird how this stuff works. Remember to answer quickly. Check out the following exercise, guaranteed to freak you out. There's no trick or surprise, just follow these instructions, and answer the questions one at a time and as quickly as you can! Again, as quickly as you can but don't advance until you've done each of them... really. What is: 2+2? 4+4? 8+8? 16+16? Quick! Pick a number between 12 and 5. Got it? Now page down... The number you picked was 7, right? The mind is a strange thing.