I didn't know there was such a day until Syn Joe told me about it. And there's also a special competition at worldmathsday.com in conjunction with World Maths Day. In this competition, you solve simple maths to get points. For every problem solved, you get one point. I tried playing it and I went crazy after 5 minutes. It's not that the maths is hard. You get questions like 23 + 7. It's easy but it's all repetitive and manual work. The top player solved 129106 questions. It will drive you crazy. It's more like a work for a robot. So I built a robot (script) to help me with it:

What this robot does is it reads the math problem (say 23 + 7) and then it calculates it and then paste the answer back to the site. And it goes for the next question. All this is fully automated, using the keyboard and mouse to switch between the windows. The popup window that you constantly see appearing on the screen is a simple visual basic application that reads the math problem and outputs the answer.

This robot can do 90 math problems in a minute. However, sometimes it does make mistakes because of the lag in processing since it's mainly open loop. The speed is largely limited by the speed of the computer and mine was at 100% CPU usage because flash was taking lots of CPU. With a faster computer, 150 per minute should not be a problem.

But once you go too fast you'll appear inhuman. Someone got banned because of that I heard. If you have clicked on the link to worldmathsday.com you'll see that the top player is Kaya G. He's a 12 year old kid who's been sitting in front of the computer for almost 48 hours (3 hours of sleep in the first 24 hours) just to solve 129106 math problems. You can read the story here.

His teachers should exempt him from future maths homework since he's probably done 2 lifetime worth of math questions already.