Last post's answers:
1. Smiles: because there is a mile between the two 's's
2. A clock
3. Halfway; because after you pass halfway you are running out of the woods.
1. What belongs to you but others use it more than you do?
2. A killer gets condemed to death, and must choose between three rooms. The first is full of fire, the second is full of assassins with loaded guns, and the last is full of lions that haven't eaten in three years. Which room is safest?
3. A girl was ten on her last birthday and will be twelve on her next birthday. How is this possible?