· 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?