Answer:
Who spends the day at the window, goes to the table for meals. And hides at night?
What does no man want, yet no man want to lose?
I am free for the taking. Through all of your life, though given but once at birth. I am less than nothing in weight, but will fell the strongest of you if held.
What can you share and still have all for yourself?
Goes over all the hills and hollows. Bites hard, but never swallows.
When is it bad luck to see a black cat?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?