Challenger Deep By Neal Shusterman
A simile is a comparison that uses like or as. For example, "It occurs to me that parrots always appear to have a pleasant smile ,kind of like dolphins, so you never truly know what they're thinking" is a simile because it compares a parrot to a dolphin using like.
A metaphor is a comparison between two things that does not use like or as. An example of this is, "I can feel their eyes shooting through me...Mental ping-pong ball through my soul" because it is comparing the eyes of his parents looking at him to a ping-pong ball going through his soul.
A hyperbole is an exaggeration. For example, " Your head us so full of answers, it's bursting" is a hyperbole because it's exaggerating the amount of knowledge you have.