· Why can't we ever seem to eradicate all illnesses?
· Why do some people lose weight on a diet that doesn't work for others at all?
· Why are teachers paid such low salaries?
· Why are insects dying in masses?
· What's environmentally wrong with monocultures?
· Why did we ever believe that formula was better for infants than breast milk?
· Why is there good and bad in the world? Can't we just have the good without the bad?
· What's the purpose of life?
· Why am I here on earth?
· Is fat good or bad? Why can't science give us a definite answer?