Answer:
What has no hands but might knock on your door, and if it does you better open up?
Small, containing light, You'll need it in the dark, It will provide that spark, and shine into the night. Will light up any pyre, 'Cause it can help make a fire.
What can hold a car but canβt lift a feather?
I'm a starchy plant tuber that is one of the most important food crops, cooked and eaten fried, such as french fries.
What has thousands of ribs and two backbones?
When is it bad luck to see a black cat?