He's in a coffin.

You throw it up.

You send it with your lock, once they get it, they send it back with one of their locks. When YOU get it back, take YOUR lock off and send it back. They have the key to their lock which should be on it, and remove it.... there is their valuable gift.

There are none left, for they all jumped off because they are all COPY-cats.

Bob is bitten during the day. People who are bitten by werwolves in daylight do not transform.

Because he's always stuffed up.

The dead man is the alive man's son.

Date tree.

Meat.

Saluting indoors is forbidden except when formally reporting to a superior officer.

4 mirrors facing the wall.

February 29th, it was a leap year.