A play on the mathematical tricks, called THOANs (Think Of A Number) such as: 1. Think of a number. Add 1, multiply by 2, subtract the number you first thought of, subtract 2. You now have the first number. 2. Think of a number. Add 2, multiply by the number thought of, add 1, divide by one more than the number thought of, subtract the first number. the answer is 1. 3. Think of a number. Add 3 and multiply by 3, subtract 6 and multiply by 3, add first number, subtract 9, knock off the 0. Answer is the first number. 4. Think of a number. Add half of it, add half this sum, divide by 9. The result is one fourth of the number. Who said rock 'n roll wasn't smart?