How is possible to have on a page a
bounce rate = 100%
and for the same page an
average time on page > 1min ?
screenshot here
That's because the bounce rate refers to entrances (which are two in your screenshot), not to the pageviews. I.e. you have 40 pageviews that did not bounce and viewed the page 1:53 min on average, but for the 2 for whom this was the landingpage and the last (and only) page in the visit the bounce rate was by defintion 100%.