Hyperboles:
1. "My heart felt like a runaway train" (This exaggerates the feeling of excitement or nervousness, making it seem out of control.)
2. "He could eat a horse" (This is a common phrase used to describe someone with a big appetite.)
3. "That story was so boring it could put a bear to sleep" (This emphasizes the story's dullness by saying it could even bore a bear.)
4. "I was so tired I could sleep for a week" (This exaggeration highlights the character's exhaustion.)
5. "He's got a million ideas" (This emphasizes the abundance of ideas the character has.)
Idioms:
1. "He's got a chip on his shoulder" (This means he is easily offended and likely to argue.)
2. "Don't count your chickens before they hatch" (This warns against assuming success before it happens.)
3. "He's got a heart of gold" (This describes someone who is kind and generous.)
4. "Hit the road" (This means to leave or depart.)
5. "Hold your horses" (This means to wait or slow down.)
Please note that these are just a few examples, and there are many other hyperboles and idioms used in the book.