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# kukupai

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## Posts posted by kukupai

1. ### Nine digits => two numbers => largest product

9642 x 87531 ???

2. ### Nine digits => two numbers => largest product

9652 x 87431

(and running out of ideas )
3. ### Nine digits => two numbers => largest product

maybe 911 x 87654321 then?

Anyway, back to work.

9 x 87654321

5. ### The only one..

February

It's the only one that starts with a different letter when translated to Estonian.
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6. ### Red Queen

... take 20 quarters and flip them over.

If I took all heads, then after flipping them, I had 20 tails in the pile of 20 and 20 tails in the "infinite" pile.

If I took for example 12 heads and 8 tails, then there was 12 tails left in the "infinite" pile and after flipping the 20 quarters I took, I had 12 tails in the small pile too.
8. ### Sweet path

The shortest way from A to B is a bit more than 5,84 units (red line in the left picture).

From B to A the ant travels by the diagonal of an imaginary plane between lines ef and ab (folded a bit at the line cd) - yellow line in the right picture. Should be some 5,49 units or so. Maybe.

Sorry for my English.

• 1

Enunciation?

10. ### Forum Taboo

Hiss, hissing?

11. ### LOTR Telephone

Dig along the green lines

1 + 1 + √(0,52 + 0,52) = 2,7071

I think maybe Sam could dig even less, following the pink lines BMD + MC + AO (green), but I don't know, how to find point M.

Pause?

13. ### An alternating squares "aha" puzzle

There are 50 pairs of n

2 - (n -1)2.
n2 - (n -1)2= n + (n- 1)
So 1002 - 992 + 982 - 972 + 962 - 952 + ... + 22 - 12 can be written
100 + 99 + 98+ ... + 2 + 1 = (100 x 101)/2 = 5050

15. ### The Orchestra

of Ravel's Boléro

16. ### It's all sixes

(0! + 0! + 0!)! = 6
(1 + 1 + 1)! = 6
2 + 2 + 2 = 6
3 x 3 - 3 = 6
√4 + √4 + √4 = 6
5 + 5/5 = 6
6 + 6 - 6 = 6
7 - 7/7 = 6
8 - √√(8 + 8) = 6
√(9 x 9) - √9 = 6

Yes.

17. ### Ken Ken

1 4 8 6 7 3 5 2 9

8 6 7 9 1 2 3 4 5
4 2 5 8 6 9 1 7 3
6 9 4 3 5 8 7 1 2
2 7 9 1 3 4 8 5 6
5 1 6 4 9 7 2 3 8
3 8 1 5 2 6 4 9 7
7 5 3 2 8 1 9 6 4
9 3 2 7 4 5 6 8 1
18. ### For example, E7 would be England

Z6 - Zambia,

L10 Luxembourg,
I9 - Indonesia,
E7 - Ecuador, England, Eritrea, Estonia,
B6 - Belize, Bhutan, Brazil, Brunei,
J7 - Jamaica,
P8 - Pakistan, Paraguay, Portugal,
P4 - Peru,
F4 - Fiji
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19. ### Making a fair choice

At first the friends give a number 0, 1 and 2 to the restaurants (for example A=0, B=1, C=2), then they decide an exact time (for example 72 hours before they have to meet ). Now everyone chooses an integer and at this time they send their number to their friends (it has to be done at the exact time to avoid cheating). Once every friend has these three numbers, they add them up and divide the sum by 3. If the remainder is 0, they go to restaurant A, if the remainder is 1, they go to restaurant B, if 2, then the restaurant will be C.

20. ### Making something from nothing

[spoiler=just a typo ]... must be (0!+0!+0!+0!)!+0!

3211000

22. ### One for the ages

6 (the number of bars to show 9)

23. ### Generation Bee

but I got

28656

Do you count "this male bee" too? Because I can't get more than 28655 either.

24. ### Where's the F@*&\$^# is the Road pt. 2

My English is not good enough to explain in words, so I drew a picture instead. Just follow the green line.

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