Obviously by windows he means Microsoft Windows. And he died trying to ‘get his Windows to open.’ Prolly got a virus off 4chan.

Shaking hands goes both ways. If you shake my hand, then I am shaking your hand at the same time. Therefore all the numbers would be the same.

What if the people at the party were already aquainted and Jack and his wife were invited to join the weekly Friday night party. Then it would be 8 and 8 for Jack and his wife.
Also, for the answer to work we would need to know how many hands Jack shook.

However (and even more realistically) Jack may be an introvert and only shook 3 peoples hands because he was nervous. Or, maybe his wife is really jealous, so he only shook the guys hands because he didn’t want his wife to think he was flirting with the other wives.

98% of the population can’t figure it out because 98% of the population refuse to believe that such a neighborhood exists.