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0 / 60 seg.
A certain man had great grandchildren, yet none of his grandchildren had any children. How come?
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Clue
THE PROBABILITY OF TAKING OUT A PAIR OF BLACK SOCKS IS ZERO. IF THERE'S A WHITE PAIR AND BLACK PAIR OF SOCKS, THERE WOULD HAVE BEEN THREE CASES: BLACK PAIR, WHITE PAIR, MIXED PAIR. THIS WOULD GIVE A PROBABILITY OF 1/3 FOR A PAIR OF WHITE SOCKS. BUT THEN, IT IS STATED THAT THE PROBABILITY OF WHITE SOCKS IS 1/2 OR ONLY 2 POSSIBILITIES. THIS MEANS THERE THAT THERE WAS NO BLACK PAIR. WE CAN CONCLUDE THAT THERE WERE THREE WHITE SOCKS AND ONE BLACK SOCK
THE RETIRED COUPLE HAD CONSTRUCTED A SMALL GINGERBREAD HOUSE FOR THEIR GRANDCHILDREN, AND INVITED THEM OVER TO EAT IT
THE IDEA IS TO RIDE THE OTHER MAN'S HORSE. THEY RACE AS THEY NORMALLY WOULD. THE BLACKSMITH SAID THE MAN WHOSE HORSE CROSSES LAST WOULD WIN, SO THE MAN WHO WINS THE RACE WOULD HAVE HIS HORSE FINISH LAST
THE RIDDLE TALKS ABOUT GREAT GRANDCHILDREN, NOT GREAT-GRANDCHILDREN. GREAT-GRANDCHILDREN ARE THE CHILDREN OF ONE'S GRANDCHILDREN. GREAT GRANDCHILDREN JUST MEANS THAT THE GRANDCHILDREN WERE GREAT
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