4 GIRLS IN A ROOM CLAIRE IS PLAYING CHESS MARIA IS WATCHING TV ANNE IS SLEEPING WHAT IS THE FOURTH GIRL DOING RIDDL RID RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

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This is a famous question in understanding conditional probability, which simply means that given some information you might be able to get a better estimate.

The following are possible combinations of two children that form a sample space in any earthly family:

Boy - Girl
Girl - Boy
Boy - Boy
Girl - Girl

Since we know one of the children is a boy, we will drop the girl-girl possibility from the sample space.
This leaves only three possibilities, one of which is two boys. Hence the probability is 1/3 Did you answer this riddle correctly?
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When they are dead tired. Did you answer this riddle correctly?
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The captain was sitting on the deck. Did you answer this riddle correctly?
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One of the 'fathers' is also a grandfather. Therefore the other father is both a son and a father to the grandson.

In other words, the one father is both a son and a father. Did you answer this riddle correctly?
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The two babies are two of a set of triplets. Did you answer this riddle correctly?
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Your name. Did you answer this riddle correctly?
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A map. Did you answer this riddle correctly?
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Each was the name of the first man walking by. Did you answer this riddle correctly?
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11. Did you answer this riddle correctly?
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20. Did you answer this riddle correctly?
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25. Did you answer this riddle correctly?
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26. Did you answer this riddle correctly?
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31. Did you answer this riddle correctly?
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38. Did you answer this riddle correctly?
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46. Did you answer this riddle correctly?
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