Answer:
What is the word that even in plain sight remains hidden?
I'm a starchy plant tuber that is one of the most important food crops, cooked and eaten fried, such as french fries.
This is a plant named after a light source. What is it?
I shave several times a day, yet I still have a beard. Who am I?
What always comes into the house through the keyhole?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?