Answer:
What is full of holes but still holds water?
With three leaves, I am just a plant. Add another leaf and everyone will want me for good luck. What am I?
Four fingers and a thumb, yet flesh and blood I have none. What am I?
From house to house I go, sometimes narrow, sometimes wide. Whether there's rain or snow, I always stay outside. What am I?
The Titanic is still here. What am I?
Why was the cook arrested?