1. The answer to the riddle is a clock.
2. A lighted candle.
3. The answer is pretty easy and straightforward, it is the letter 'R'. Looking into the letter of MARCH and APRIL, R is the middlemost letter.
4. Footsteps
5. A secret
The life lesson that could be learned from this chapter is that when facing with a difficult situation or a crisis, we should overcome terror or fear in order to make a decision and take action. It might be implied that sometimes a person can succeed and other can fail but there is always a choice.
What makes <em>The Importance of Being Earnest </em>a comedy of manners is the way it satirized the behavior of the Victorian aristocracy.
It mocks the rich, and shows how shallow and inconsiderate they are, thinking only about trivial things.