That was a pretty good puzzler. I was pretty sure it had to do with clocks, but I couldn’t narrow it down to the clock of the actual solution.
I did not hear the puzzler because I have no Idea of how to listen to a podcast. But I think I know the answer. If you don’t want to hear the anwser, stop reading now.
It is a microwave. 50 seconds, 1 minute and 25 seconds, 90 seconds.
Click cartalk.com , upper left, then “our show”, “podcast”, then “npr podcast directory”. Choose the one you want, then click “listen”.