Category: Numbers and Sequences

  • Easy Deduction

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    by

    Jaume
    in

    A teacher thinks of two consecutive numbers between 1 and 10. The first student knows one number and the second student knows the second number. The following exchange takes place:First: I do not know your number.Second: Neither do I know your number.First: Now I know.What are the 4 solutions of this easy number puzzle?

  • Birthday

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    by

    Jaume
    in

    The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year.What day is my birthday?