Answer (explanation):
1. Personification
Raindrops are "turned into people/person" because they can 'sing' to stones.
2. Hyperbole
A sense of exaggeration is used, where it said 'shoe box' when it's impossible for an actual apartment to be the size of a shoe box.
3. Metaphor
'weapon of knowledge' indicates the answer because knowledge isn't really a real life weapon that could be used as a weapon. However, it is saying that the great effects of knowledge can be compared to that of a weapon.
4. Alliteration
four (the majority of) words in the sentence all start with 'W'.
5. Allusion
It's like telling a story where some parts are accented based on another well known event. In this case, Allen might not really have been exactly like Charlie Captain style, but it was written so people could understand what Allen was like when he/she got the cold.