- I have a trick for you. Please think any number and do not say to me.
- Yes, I think. (I am thinking 78)
- Multiply that number by five.
- Allright. (It is 5x78=390)
- Now, add five.
- Adding five... (395)
- Multiply by two and say the sum to me.
- It is 790. (2x395)
- You thought seventy...