Figure out the theme of each of the word groupings. It could be straight forward, a more subtle connection, have something to do with parts of the words, etc..
Example: apple, banana, pear Answer: fruits
Example: gala, came, main Answer: words formed with state abbreviations (GA LA, CA, ME, MA, IN)
1) Danger, Strike, End
2) Powder, Prints, Down, Grass
3) Hare, West, Showers
4) Dusty, Ed Gein, John Bolles
1 point for each. Submit to email@example.com by next Wednesday.