1. 歯ブラシ   cold water   bathtub   soap   toothbrush   Hint Half-n-half Clue   2. 鏡   toothbrush   cold water   soap   mirror   Half-n-half Clue   3. 歯磨き   bathtub   toothpaste   hot water   soap   Half-n-half Clue   4. 石鹸   soap   hot water   toothbrush   bathtub   Half-n-half Clue   5. 浴槽   hot water   toothpaste   soap   bathtub   Half-n-half Clue   6. 冷水   hot water   mirror   bathtub   cold water   Half-n-half Clue   7. 蛇口   hot water   toothpaste   bathtub   faucet, tap   Half-n-half Clue