Answer:
I am a time for gathering crops. Remove the first three letters and I become an object you can wear.
If you have me, you want to share me. Once you share me, you won't have me. What am I?
I am a protector. I sit on a bridge. One person can see right through me, while others wonder what I hide. What am I?
I may be made of metal bone or wood and have many teeth. My bite hurts no one and the ladies love me.
I have every color but no gold.
Pirates put their booty in it.