I am busy reading a book called ‘Risk’ by Dan Gardner. In the book ‘Risk’ there is a riddle. The riddle is about the bat and ball. Dan Gardner says that we have two ways of working things out and what we will say. System One and System Two are what we use to solve things. So the bat and ball riddle tests these systems. Here is the Bat and Ball riddle. Can you work it out.

Bat & Ball Riddle

A bat and ball cost $1.10
If the bat costs $1 more than the ball then
What does the ball costs?

The most common and reactive answer is probably what you just said aloud or