The Magic Golpher will guess your number. How does it do it?

Two mind reading activities. The first one can be explained using knowledge of linear expressions, while the second one is just a bit of fun.

Click on the cyrstal ball to start. Follow the instructions.
Question 1: What is the secret? Hint: Record your answers and look for a pattern.
Question 2: How does it work? Hint: It uses ALGEBRA!