What is the world's hardest riddle?

What is the world's hardest riddle?

id definatly have to say..

I turn polar bears white
and I will make you cry.
I make guys have to pee
and girls comb their hair.
I make celebrities look stupid
and normal people look like celebrities.
I turn pancakes brown
and make your champane bubble.
If you sqeeze me, I'll pop.
If you look at me, you'll pop.
Can you guess the riddle?

I dont know can you tell me

I Susie ate 4 apples, and Billy consumed 7, why does Phil have a strong dislike for peanut butter?

bwahahahahahahaha omg frigging awesome riddle beserker. Im going to have to remember that one.