What are the answers to these riddles, and what skills do they help develop?

Here are the answers to the riddles:

*a) The answer to this riddle is A candle.

*b) Solving this riddle requires lateral thinking and deductive reasoning. It involves interpreting words in non-literal ways and connecting abstract concepts to physical objects.

*c) Riddles like this help develop critical thinking skills by encouraging problem-solving, promoting flexible thinking to consider multiple interpretations, and enhancing logical reasoning to deduce the correct answer from given clues.