Nobody is talking about Google's FooBar challenge.
I have just completed the challenge(All 5 levels) and waiting for any reply from google.
There were 5 Levels and coding problem were given to solve.

The number of problems in each levels were:-
Level 1 :- 1 Problem
Level 2:- 2 Problem
Level 3:- 3 Problem
Level 4:- 2 Problem
Level 5:- 1 Problem
Questions were from all type of dificulty level Easy,Medium and Hard.

I get this challenge when I was googling about a programming topic . A message poped up like
"You're speaking our language. Up for a challenge?"

Anyone having experience of foobar challenge please share your experiance about interview or further details.
Thank you, in advance

** Screenshot is of the first level completion.