The words in each set have a connection, something that could apply to all three of them in some way. For example: leg, sound barrier, bread = things you can break
1. teeth, luggage, chest
2. candle, sheep, snuff
3. rope, town, class
4. eye, box, cap
-5. surgeon, raccoon, skindiver
6. voice, party, switch
7. roads, schools, eggs
8. swords, street, fingers
-9. bus, payment, deadline
-10. blank, water, breath