I do the NYT crossword every day, so I have a good idea of how long it should take. For instance, Monday should not take me longer than about 6 minutes. Thursda

I do the NYT crossword every day, so I have a good idea of how long it should take. For instance, Monday should not take me longer than about 6 minutes. Thursday takes 30 minutes, Sunday takes 55 minutes. If I'm much above that, it means I'm not all there -- time to go for a brisk walk to get the old brain going.