Answer:
There's one in every deck of cards and in a famous movie
What was the first man made invention that could see through a wall?
The more you have of me, the less you see. Who am I?
What is it that you ought to keep after you have given it to someone else?
Which popular cheese is made backwards?
hide me from your parents if you have done bad academically this year.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?