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        riddles >> easy >> Birthday Puzzle.
        
(Message started by: movie4fun on Aug 20th, 2014, 1:03am)
Title: Birthday Puzzle.
Post by movie4fun on Aug 20th, 2014, 1:03am
One day a girl celebrated her birthday. Two days later, her older twin brother celebrated his. How is this possible?
Title: Re: Birthday Puzzle.
Post by rmsgrey on Aug 20th, 2014, 7:17am
International date line and leap year
Title: Re: Birthday Puzzle.
Post by Grimbal on Aug 20th, 2014, 8:41am
Yeah.  Any single day lasts for 2 days if you think of it.
Title: Re: Birthday Puzzle.
Post by movie4fun on Aug 20th, 2014, 9:09am
yeah correct very easy ;)
Title: Re: Birthday Puzzle.
Post by dudiobugtron on Aug 20th, 2014, 6:27pm
Maybe the older twin was in a space ship travelling away from Earth at the speed of light, so when he returned he was actually 2 days younger.

----------

There's also a more realistic answer, which has probably happened in reality much more often than any of the other ones offered so far: [hide]he waited a couple of days for the weekend, so he could celebrate it on Saturday instead of Thursday.  Maybe the twins were sick of having joint birthday parties, or maybe he just wanted to have a party without all of his sister's friends there.[/hide]
Title: Re: Birthday Puzzle.
Post by movie4fun on Aug 20th, 2014, 11:28pm

on 08/20/14 at 18:27:42, dudiobugtron wrote:
Maybe the older twin was in a space ship travelling away from Earth at the speed of light, so when he returned he was actually 2 days younger.

----------

There's also a more realistic answer, which has probably happened in reality much more often than any of the other ones offered so far: [hide]he waited a couple of days for the weekend, so he could celebrate it on Saturday instead of Thursday.  Maybe the twins were sick of having joint birthday parties, or maybe he just wanted to have a party without all of his sister's friends there.[/hide]


you have got a nice imagination mate but the real answer is much more simple :p
Title: Re: Birthday Puzzle.
Post by Grimbal on Aug 21st, 2014, 1:00am
It could be chinese twins.  One celebrates his birthday according to the gregorian calendar, the other according to the chinese lunar calendar.
Title: Re: Birthday Puzzle.
Post by JiNbOtAk on Aug 21st, 2014, 8:50pm

on 08/21/14 at 01:00:02, Grimbal wrote:
It could be chinese twins.


Actually, they don't have to be chinese to use the chinese calendar.  :P
Title: Re: Birthday Puzzle.
Post by Grimbal on Aug 22nd, 2014, 9:40am
Well, yes.

It could be non-chinese twins.  One celebrates his birthday according to the gregorian calendar, the other according to the chinese lunar calendar.
Title: Re: Birthday Puzzle.
Post by rmsgrey on Aug 23rd, 2014, 8:39am
Gregorian and Julian would allow something like a fortnight's difference.
Title: Re: Birthday Puzzle.
Post by Technologeek on Sep 2nd, 2014, 1:24pm
[hideb]They didn't celebrate at the same time ;)[/hideb]
Title: Re: Birthday Puzzle.
Post by Annettagiles on Sep 23rd, 2014, 4:17am
simple why not both the girl and twin brothers present age have not been mentioned here so their year of birth may be get differed


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