1. silence is the loudest of all sounds. paradox 2. i defy you, dreary night, to hide my love from me! personification 3. jacob is a breath of fresh air. metaphor 4. the children's laughter filled the room as helium fills a balloon. simile 5. the tree raps at the window, begging to come inside. apostrophe

Here are the answers to their correct examples:
1. Silence is the loudest of all sounds. PARADOX
2. I defy you, dreary night, to hide my love from me! APOSTROPHE
3. Jacob is a breath of fresh air. METAPHOR
4. The children's laughter filled the room as helium fills a balloon. 
5. The tree raps at the window, begging to come inside. PERSONIFICATION
Hope this helps.