Me too. The dumber part, I mean.
I think sometimes it all depends on my frame of mind. Some days I can whip through these things and some days I feel like my head is filled with pencil shavings. I guess I could chalk it up to lack of sleep, too much sleep, too many drinks the night before, or any number of things. Who knows?
Yesterday I got the SLOWEST score on one of the cryptos.... 800 some seconds. I REALLY felt my brain was turning to mush then!