Who says love is free? Hallmark's revenue from last year starts to give us an idea of how much we really spend on it. Hallmark revenue You may have noticed that everything is more expensive these days—how much more expensive is it really? $1000 1914 dollars in 2014 It's a little known fact that Wolfram|Alpha's true purpose is to help you cheat at Words With Friends. What words contain the letters w-o-l-f? words containing wolf Every history lover should know what modern numbers look like in Roman numerals. But do they know them in Mayan? 343 to Roman numerals You fell asleep and forgot to study for your midterm! What are the odds you'll pass with at least 35 questions right on the 50-question true/false exam just by guessing? probability of 35 or more successes in 50 trials with p = .5