Get ready to return to the tricky world of fan favorite Who Is? Brain Teaser & Tricky Riddles with a brand new chat and clue system! Who is Lying? Who is the killer? and Who is the imposter? Enjoy riddle games and iq tests! This unique iq test comes from the makers of fun-favorite Brain Test: Tricky Puzzles, Brain Test 2: Tricky Stories and Brain Test 3: Tricky Quests. Who is 2? Chat Puzzles & Brain Teasers is a brain teaser riddle game with chat simulations. In order to find the answers, you