FOUR DAYS ,I RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

A scent or smell. A scent is important to both humans and animals and both search for scents (for different reasons). A scent travels through the air to benefit humans and animals, again, for different reasons. Did you answer this riddle correctly?
YES  NO  

The troposphere Did you answer this riddle correctly?
YES  NO  

All of them Did you answer this riddle correctly?
YES  NO  

A watermelon Did you answer this riddle correctly?
YES  NO  

Their ruler! Did you answer this riddle correctly?
YES  NO  

They both go in a pen Did you answer this riddle correctly?
YES  NO  

The letters 'oo' Did you answer this riddle correctly?
YES  NO  

A synapse. Did you answer this riddle correctly?
YES  NO  

Ring Did you answer this riddle correctly?
YES  NO  

Yesterday, Today, and Tomorrow. Did you answer this riddle correctly?
YES  NO  

Talk. Did you answer this riddle correctly?
YES  NO  

One thing Julie could do is freeze a tray of ice-cubes, and turn the tray of ice upside down in her freezer. When she comes home, she should check the tray. If the ice cubes are still in the tray, the food is safe to eat. If the trays are empty, it's time to clean out the freezer. She will have to make a judgment call if the ice-cubes are only slightly thawed. Did you answer this riddle correctly?
YES  NO  

The rust. Did you answer this riddle correctly?
YES  NO  

Pepper (Pepper fruit/grain, red/green/yellow/black/white pepper, Dr Pepper, Chili Pepper and Pepper spray) Did you answer this riddle correctly?
YES  NO  

Hawaii Did you answer this riddle correctly?
YES  NO