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Geekdad Puzzle of the Week Solution – Presidential Anagrams
This week's puzzle, as presented: In honor of the upcoming debates, I thought it would be fun to get a little "Presidential" with this week's puzzle. But as with anything in politics, it has multiple...
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GeekDad Puzzle of the Week: Palindromic Sums of Squares
This week's puzzle is simple: How many numbers, between 1,000,000 and 10,000,000, are both palindromes and the sums of sets of consecutive squares?
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GeekDad Puzzle of the Week Solution: Palindromic Sums of Squares
(NOTE: For purposes of this puzzle, please consider only sums of sets of squares of positive integers.) Hopefully, a lot of people remembered that the sum of numbers from 1^2 + 2^2 + ... n^2 =...
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GeekDad Puzzle of the Week: Halloween Kids Party Puzzle
Kids' Halloween parties are great this time of year, unless of course you don't read the invite carefully and are the only adult in costume. In any case, my wife Allison and I took Max and Nora out to ...
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GeekDad Puzzle of the Week Solution: Halloween Kids Party Puzzle
Hope that everyone is still feasting on remainder Halloween candy. Here is this past week's puzzle as previously posted: Kids' Halloween parties are great this time of year, unless of course you don’t...
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GeekDad Puzzle of the Week: Almost Perfect Number Pairs
Almost perfect number pairs are pairs of numbers that equal the sum of their partner's divisors. For example, 1184 and 1210 are an almost perfect number pair. This week's GeekDad Puzzle of the Week is...
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GeekDad Puzzle of the Week Solution: Almost Perfect Number Pairs
Perfect numbers are numbers that equal the sum of their divisors. For example, the number 6 can be divided evenly by 1, 2, and 3, and 6 = 1 + 2 + 3. Almost perfect number pairs are pairs ...
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GeekDad Puzzle of the Week: Alternate Goldbach Conjecture
One of Christian Goldbach (1690 - 1764)'s conjectures was that every odd composite integer could be expressed as twice a perfect square plus a prime. For example, 9 = 2(1^2)+7, and 15 = 2(2^2)+7. What...
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GeekDad Puzzle of the Week Solution: Alternate Goldbach Conjecture
One of Goldbach's earlier conjectures was that every odd composite integer could be expressed as twice a perfect square plus a prime. For example, 9 = 2(12)+7, and 15 = 2(22)+7. This week's GeekDad...
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GeekDad Puzzle of the Week: Classic 12-Day Countdown
For your chance at this week's $50 ThinkGeek Gift Certificate, simply tally up the total of gifts "given/sung" by Max's class as they sing the classic "Twelve Days of Christmas." A gift is "given/sung"...
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GeekDad Puzzle of the Week Solution: Classic 12-Day Countdown
This week's puzzle was either much harder than originally scoped or ill-defined; there were very few responses, and even fewer that were correct. Many thanks to everyone that hazarded a guess, from the...
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GeekDad Puzzle of the Week: Ping Pong Probability
Ping pong (or table tennis) is a game of both odds and luck. Most games I have seen have been rather one sided -- it is really rare that two players are really at the same level. Pretty much every ...
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GeekDad Puzzle of the Week Solution: Ping Pong Probability
Ping pong (or table tennis) is a game of both odds and luck. Most games I have seen have been rather one sided — it is really rare that two players are really at the same level. Pretty much every ...
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GeekDad Puzzle of the Week – 4 of 6
Six letter words are funny -- only about half of them don't repeat any letters, and just under two-thirds of them include the letter "e." Ok, so maybe these facts are more "funny/strange" than...
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GeekDad Puzzle of the Week: Finger Primes
Counting only on fingers, the four of us at dinner can count from 00,000,000 to 55,555,555 using only single digits from 0-5. In this counting scheme, how many prime numbers do we encounter?
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GeekDad Puzzle of the Week Solution: Finger Primes
Just who was able to correctly count the primes representable on eight hands, with each hand being its own numeric digit?
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GeekDad Puzzle of the Week: A Weighty Proposition
Presented with a life or death challenge, Wyoming Smith has to try to make as many balance combinations as he can with a limited number of weights. How does he do it? Solve that riddle, and qualify for...
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GeekDad Puzzle of the Week Solution: A Weighty Proposition
The puzzle as previously presented: After running afoul of the law in a foreign country, Wyoming Smith (not the guy with a similar name from the Harrison Ford movies) is presented with a logic problem:...
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GeekDad Puzzle of the Week: drowssorC Puzzle
DrowSsorc? Is this another RA Salvatore reference, like Arach-Tinilith? No, it's actually just the word "crossword" as in "crossword puzzle," backwards. Technically, this week's GeekDad Puzzle of the...
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GeekDad Puzzle of the Week Solution: drowssorC Puzzle
The puzzle as presented: DrowSsorc? Is this another RA Salvatore reference, like Arach-Tinilith? No, it’s actually just the word “crossword” as in “crossword puzzle,” backwards. Technically, this...
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