Answer:
I'm a starchy plant tuber that is one of the most important food crops, cooked and eaten fried, such as french fries.
Sitting down you have it, Standing up you don't.
What has holes on each side, but can still can hold water?
What devours all and can kill a king. Destroy a town and crushes mountains down?
What body part is pronounced as one letter but written with three, only two different letters are used?
What language does a billboard speak?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?