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  2. Ages of Three Children puzzle - Wikipedia

    en.wikipedia.org/wiki/Ages_of_Three_Children_puzzle

    Using the same argument as before it becomes clear that the number on the gate is 13, and the ages 9, 2 and 2. [5] A criticism of this problem is that a household may have two children of the same age in terms of natural numbers, but different birthdays, such as children in a mixed-parent household.

  3. The ClueFinders - Wikipedia

    en.wikipedia.org/wiki/The_ClueFinders

    The first ClueFinders title, The ClueFinders 3rd Grade Adventures: The Mystery of Mathra, was released in January 1998, and The ClueFinders 4th Grade Adventures was released in July. The Learning Company used their new game as the prototype for Internet Applet technology, which allowed users to download supplementary activities from the ...

  4. Four fours - Wikipedia

    en.wikipedia.org/wiki/Four_fours

    For example, when d=4, the hash table for two occurrences of d would contain the key-value pair 8 and 4+4, and the one for three occurrences, the key-value pair 2 and (4+4)/4 (strings shown in bold). The task is then reduced to recursively computing these hash tables for increasing n , starting from n=1 and continuing up to e.g. n=4.

  5. The monkey and the coconuts - Wikipedia

    en.wikipedia.org/wiki/The_monkey_and_the_coconuts

    n 5 n 4 n 3 4 4 0 s 4 s 3 s 2 4 4 4 1 But the same reasoning again applies to N' as applied to N, so the next digit of N' is 4, so s 2 and n 3 are also 4, etc. There are 5 divisions; the first four must leave an odd number base 5 in the pile for the next division, but the last division must leave an even number base 5 so the morning division ...

  6. The ClueFinders 4th Grade Adventures: Puzzle of the Pyramid

    en.wikipedia.org/wiki/The_ClueFinders_4th_Grade...

    [4] All Game Guide gave the game four out five stars, generally complimenting graphics, gameplay and controls, and called it "a delightful mix of adventure and learning". [ 2 ] Game Vortex rated it 80/100, [ 3 ] 7Wolf Magazine rated it 70/100, while macHOME gave it 3 out of 5 stars.

  7. Bulls and cows - Wikipedia

    en.wikipedia.org/wiki/Bulls_and_Cows

    The digits of the number guessed also must all be different. If the matching digits are in their right positions, they are "bulls", if in different positions, they are "cows". Example: Secret number: 4271; Opponent's try: 1234; Answer: 1 bull and 2 cows. (The bull is "2", the cows are "4" and "1".)