Students may understand well when their teacher solves the questions, while they have troubles in trying to solve them by themselves. It is because they have the knowledge but not completely understood them. In the same way, if you hear the word of God and store it just as knowledge, it is not true faith and profits nothing. Only when you believe in His word and practice it with deeds, can you be deemed to have true faith and receive answers.
"For just as the body without the spirit is dead, so also faith without works is dead" (James 2:26).