Answer:
What word becomes shorter when you add two letters to it?
If a plane crashes on the border of US and Canada where do they bury the survivors?
I'm blue at day and black at night. I do contain some creatures born and died. What am I?
I am always in front of you but you will never see me
I am a path between high natural masses; remove the first letter to get a path between man-made masses.
When is it bad luck to see a black cat?