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This is a question Unusual talents

B3tans! Can you hum with your tongue? (Your Ginger Fuhrer can and he once demonstrated this to a producer on Blockbusters on the hope of getting on TV) Maybe you can bend your thumb in a really horrid way that makes it look broken. (Your Ginger Fuhrer's other special talent) What can you do? Extra points if you fancy demonstrating this with the odd pic or youtube vid.

Suggested by Dazbrilliantwhites

(, Thu 18 Nov 2010, 14:28)
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I know a neat little trick for the result of multiplying any number by 11
there aren't many explicit cases where this helps in any form whatsoever, but it's quite fun telling kids and watching them completely surprise adults by correctly multiplying really long and randomly generated numbers by eleven.
(, Tue 23 Nov 2010, 17:19, 6 replies)
I too did this
Is it the method where you add the number to the one before it?
(, Tue 23 Nov 2010, 17:32, closed)
no
That's the Fibonnaci series
(, Tue 23 Nov 2010, 19:56, closed)
similar to that yes
It's fully explained below and is far better told than I could. Very simple to get the hang of...
www.associatedcontent.com/article/1968806/how_to_multiply_any_number_by_11.html
(, Wed 24 Nov 2010, 12:48, closed)
another one
Is if you add the digits of a long number together and do it again until you're down to one digit, if it's a 3, 6 or 9 then the original is divisable by three.
(, Tue 23 Nov 2010, 19:59, closed)
Also, if that digit's a 9 the original number will be divisible by 9.

(, Tue 23 Nov 2010, 20:43, closed)

A number is divisible by 3 if the sum of its digits is divisible by 3.
A number is divisible by 4 if the number formed by the last two digits is divisible by 4.
A number is divisible by 8 if the number formed by the last three digits is divisible by 8.
A number is divisible by 9 if the sum of its digits is divisible by 9.
(, Wed 24 Nov 2010, 8:35, closed)

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