Answer:
What has many keys but can't open a single lock?
I am the signature stroll of ducks and penguins
I can only be played on a windy day. What am I?
I start new then become old. Start clean but be one dirty. I usually start big then become little.
What has 4 fingers and a thumb but is not living?
I have feet on my head
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic