My Brain Hurts - questions to provoke deep thinking

This collection of questions and situations, presented in a PowerPoint presentation of over 100 slides, really provokes students into deep thinking!
There are no answers as such. This is not a yes/no type of exercise. All the slides present situations and questions that provoke the students to find their own answer, knowing that there remains uncertainty!
Once familiar with the slides, you will be able to come back with your own follow up questions, further provoking students to rethink or reconsider their answers.
Students feel frustrated, but more so, extremely elated!

Let me know if you have any questions or suggestions, and a BIG BIG thanks for looking (as a full time practicing teacher, I KNOW how time consuming this process can be).

ALL my postings are FULLY "classroom-tested" - before I publish, my lessons are tested by both myself and colleagues, rigorously evaluated and discussed, and continually updated to maximize their effectiveness.
But there is always the possibility of error and room for improvement, so do please provide constructive feedback.

Search words: thinking, thought, insight, brain, training, questions