game.
…
..
.
The answer: The fifth sister is playing chess with Kate.
If Kate is playing chess, she must have an opponent. Since there are only five sisters in the room, the remaining sister is the one playing with her.
Did you catch the trick?
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Solve this math riddle from middle school
Recently, a new type of challenge has appeared on the net, although the quizzes themselves are not particularly new.
It’s about good old-school mathematics.
Trying this kind of challenge is exciting and fun, especially if it has been a
