Without a calculator, determine whether the following quantities are positive or negative.

? Positive Negative  1. $(-41)^{-41}$

? Positive Negative  2. $(-21)^0$

? Positive Negative  3. $- 95^{-78}$

? Positive Negative  4. $(-21)^{58}$

? Positive Negative  5. $19^{-1}$