Logic Riddles

Question: A father and his son are in a car accident and the father dies on the scene, so the father is out of the picture. The son is brought to the hospital and when he arrives, the surgeon said, "I can`t operate on my own son!" Who is the surgeon?

Question: Suppose you had to pick 1 of 3 doors to go through. One has ninja assassins, one has a lion that hasn't eaten in 3 months, and one has a flaming inferno. Which door should you choose in order to live?

Question: If your overweight father-in-law, mother-in-law who looks like she's about to die, and your wife approach you in your car but you only have one other seat, who would you take?

Question: Anna can drive a Toyota, but not a Prius.
She can marry Otto, but not Peter.
She can borrow or rob, but not share and steal.

Can Anna pull up if I pull up?

Question: How does Halloween come before Valentine's day?