(Just for fun) Brain Teaser

Tootie


Joined: 28/08/2008
Posts: 2037

Message Posted:
21/02/2011 20:19

What is the next number in the following sequence?



TWO, FOUR, SIX, THIRTY, THIRTY TWO, THIRTY FOUR, THIRTY SIX, FORTY, FORTY TWO, FORTY FOUR, FORTY SIX......?



I will give a clue if needed.

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 20:43

Fifty?????????

CarrieRBag



Joined: 23/12/2008
Posts: 1374

Message Posted:
21/02/2011 20:43

Fifty...no number must contain the letter "e"

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 20:44

Why??????????

Tootie


Joined: 28/08/2008
Posts: 2037

Message Posted:
21/02/2011 20:49

Msg 3 Correct..

Msg 4 Bill, Why What????????



FIFTY, FIFTY TWO, FIFTY FOUR, FIFTY SIX.

SIXTY, SIXTY TWO, SIXTY FOUR, SIXTY SIX.....



What number comes next?

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 20:51

Has it got an 'e' in it? )

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 20:55

Phil...why what?



Why should it have an E in it?

Tootie


Joined: 28/08/2008
Posts: 2037

Message Posted:
21/02/2011 21:01

Bill, Dont look at it in a mathematical way.



So what come after....

FIFTY, FIFTY TWO, FIFTY FOUR, FIFTY SIX.

SIXTY, SIXTY TWO, SIXTY FOUR, SIXTY SIX.....





Ps E=mc2

elko2



Joined: 24/07/2007
Posts: 4400

Message Posted:
21/02/2011 21:02

50, 52, 54, 56, 60, 62,64,66, 2000, 2002, 2004, 2006, 2030 etc.

http://oeis.org/A006933

tut tut

ismet

Tootie


Joined: 28/08/2008
Posts: 2037

Message Posted:
21/02/2011 21:08

Ismet, The wonders of Google.

But It could argued as wrong...

Why is the number 1000 not included? tut tut

elko2



Joined: 24/07/2007
Posts: 4400

Message Posted:
21/02/2011 21:11

onE thousand!!!!

ismet

Tootie


Joined: 28/08/2008
Posts: 2037

Message Posted:
21/02/2011 21:16

Only if you speak American English, Queens English is "A thousand" tut tut



All good fun though



Anyone else got any brain teasers?

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 21:21

Phil does this mean, by definition, that for all x in A, x ∈ B if and only if x ∉ f(x). For all x the sets B and f(x) cannot be the same because B was constructed from elements of A whose images (under f) did not include themselves. More specifically, consider any x ∈ A, then either x ∈ f(x) or x ∉ f(x). In the former case, f(x) cannot equal B because x ∈ f(x) by assumption and x ∉ B by the construction of B. In the latter case, f(x) cannot equal B because x ∉ f(x) by assumption and x ∈ B by the construction of B.



Or am I missing something here? )

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 21:31

Can you arrange 9 numerals - 1, 2, 3, 4, 5, 6, 7, 8 and 9 - (using each numeral just once) above and below a division line, to create a fraction equaling to 1/3 (one third)?

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 21:56

5832/17496 = 1/3





i think !

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 21:57

Come on someone must know the answer. Phil?

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 21:57

Schoie - Well done!

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 21:58

is it right?

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 21:58

yipeeeeeeeeeeeeeee i wish i was as good at history lol

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 21:59

do i get a prize lol

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 22:01

I'm sure Phil (tootie) can arrange one for you )

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 22:25

A bear walks south for one kilometer, then it walks west for one kilometer, then it walks north for one kilometer and ends up at the same point from which it started. What color was the bear?

shrimp


Joined: 01/09/2010
Posts: 939

Message Posted:
21/02/2011 22:34

depends, when he started the walk or when he finished it?????

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 23:06

The bear was white because it was a polar bear. ?

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 23:08

Schoie - you are good at these. )

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 23:09

I'm on form tonight!!!!!

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 23:16

Paul. This is a tricky one for you.



See if you can guess the next three letters in the following series and why?

C Y G T N T L I T F.........

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 23:30

S.A.W. but i think you have gone wrong !

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 23:31

8,549,176,320 is a unique number. Can you tell what is so special about it?

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 23:34

was I right?

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 23:37

I need to think about that will let youno tomoz need to sleep on it ummm

shrimp


Joined: 01/09/2010
Posts: 939

Message Posted:
21/02/2011 23:44

numbers 1,2,3,4,5,6,7,8,9, and 10 are all included in this number?

Schoie



Joined: 26/12/2008
Posts: 299

Message Posted:
21/02/2011 23:44

all the numbers are in alphabetical order?

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
21/02/2011 23:47

If it takes two Men a week, to walk a fortnight, How many Apples in a bunch of grapes?



This is more tricky. )

shrimp


Joined: 01/09/2010
Posts: 939

Message Posted:
22/02/2011 00:19

can we have a clue/hint please........

jock1



Joined: 06/01/2008
Posts: 3786

Message Posted:
22/02/2011 09:44

A bottle of crisps.....

No1Doyen


Joined: 04/07/2008
Posts: 16617

Message Posted:
22/02/2011 11:23

Well done Jock! )