OK I'll bite.

1. I would make that range of percentage of possible truth from 0% to 100%

2. The truth should not be denied for if we do it would be at own peril. The problem is that the truth is not always apparent, in fact it can be exasperatingly hard to find.

3. Once someone shows that they will lie to further themselves or their cause we should be wary to believe that person.

4. Yes that includes President Trump, President Obama, etc.

5. I have sinned however I am not a rock thrower, or a bomb tosser, or a fire starter, though I know that such types exist.