Multiple choice general knowledge science & technology Google has a tradition of creating April Fool's Day jokes. What is it called? Google AprilPlex Google MentalPlex GooglejPlex Google mPlex Reveal answer Fill a bubble to check yourself B Correct answer Explanation Google's April Fool's Day tradition is called MentalPlex. It was introduced in 2000 as a hoax feature that claimed to use mental powers to predict search queries. This started Google's tradition of annual April Fool's pranks.