I have some!
1. A man built a house. All the windows face south. A bear walked by. What color was the bear?
White. He lives in the north pole.
2. A man and his son get into a car accident. The man is okay, but the boy needs to be taken to the hospital. But when they get there and find he needs an operation, the surgeon says "I can't operate on him! He's my son!" How is this possible?
The surgeon is a woman. This riddle is relying on the sterotype that doctors are men and nurses are woman.
3. You are in a room with no windows and no doors, and there is nothing inside the room except for a bathtub which is steadily filling with water and will eventually fill the whole room and drown you. What should you do?
Turn off the water. This riddle is relying solely on you not seeing the obvious thing to do.
(The answers are in white ink since I probably won't be back to give you the answers.)