My blog is finally back up after a long hiatus due to hosting problems (not the first time). I’m seriously contemplating moving somewhere more reliable, but it’s hard to come up with a solution that would not (a) invalidate any links to my blog or particular posts, (b) cost a lot of money (my current hosting is free), or (c) require a lot of work to convert/transfer everything. Ideas welcome.
I hope to get back to blogging soon. In the meantime, here’s an old chestnut for you to puzzle over, if you haven’t already seen it:
A certain math class meets every weekday. One Friday at the end of class, the professor tells the class that sometime during the next week, they are going to have a surprise quiz. “I am not going to tell you on what day the quiz will be,” she says. “The only thing I will say for sure is that it will be a surprise—you will not know what day the quiz will be until the moment I hand it out at the beginning of class.”
When will the quiz be?
Feel free to post questions, ideas, and solutions in the comments (so don’t peek at the comments if you want to think about it yourself first).