There is no daily decathlon today. Look behind the cut to see why (and also for yesterday's solutions.)
Meanwhile, you may like to check out Mathgrant or Mellow Melon's blogs, which still have puzzles frequently, as well as motris and cyrebjr 's LJs, and P&A Magazine.
And when you examine the solution grids, you see that each one forms a letter shape, spelling APRIL FOOLS. (Mathgrant, Mellow Melon, and P&A Magazine also joined in the April foolery.)