Fun Riddles

Question: What is the longest word in the dictionary?

Question: In spring I look gay, Covered in a green array, The warmer it gets the more clothing I wear, As the cold grows, I throw away my clothes.

What am I?

Question: What has holes on each side, but can still can hold water?

Question: Many have heard me, but nobody has seen me, and I will not speak back until spoken to.What am I?

Question: I have lakes with no fish.
I have roads with no cars.

What am I?