Answer:
When you need me, you must find me. When you find me, you no longer need me. What am I?
I start in little but I end in full you'll find me in half and complete.
What has 4 fingers and a thumb but is not living?
I am there when you sit, but gone when you stand. What am I?
What building has the most stories?
When is it bad luck to see a black cat?