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Topic: Birthday Puzzle. (Read 691 times) |
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movie4fun
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Birthday Puzzle.
« on: Aug 20th, 2014, 1:03am » |
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One day a girl celebrated her birthday. Two days later, her older twin brother celebrated his. How is this possible?
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rmsgrey
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Re: Birthday Puzzle.
« Reply #1 on: Aug 20th, 2014, 7:17am » |
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International date line and leap year
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Grimbal
wu::riddles Moderator
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Re: Birthday Puzzle.
« Reply #2 on: Aug 20th, 2014, 8:41am » |
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Yeah. Any single day lasts for 2 days if you think of it.
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movie4fun
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Re: Birthday Puzzle.
« Reply #3 on: Aug 20th, 2014, 9:09am » |
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yeah correct very easy 
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dudiobugtron
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Re: Birthday Puzzle.
« Reply #4 on: Aug 20th, 2014, 6:27pm » |
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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.
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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: 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.
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movie4fun
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Re: Birthday Puzzle.
« Reply #5 on: Aug 20th, 2014, 11:28pm » |
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on Aug 20th, 2014, 6:27pm, 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.
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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: 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. |
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you have got a nice imagination mate but the real answer is much more simple :p
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Grimbal
wu::riddles Moderator
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Re: Birthday Puzzle.
« Reply #6 on: Aug 21st, 2014, 1:00am » |
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It could be chinese twins. One celebrates his birthday according to the gregorian calendar, the other according to the chinese lunar calendar.
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JiNbOtAk
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Re: Birthday Puzzle.
« Reply #7 on: Aug 21st, 2014, 8:50pm » |
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on Aug 21st, 2014, 1:00am, Grimbal wrote:| It could be chinese twins. |
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Actually, they don't have to be chinese to use the chinese calendar. 
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Grimbal
wu::riddles Moderator
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Re: Birthday Puzzle.
« Reply #8 on: Aug 22nd, 2014, 9:40am » |
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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.
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rmsgrey
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Re: Birthday Puzzle.
« Reply #9 on: Aug 23rd, 2014, 8:39am » |
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Gregorian and Julian would allow something like a fortnight's difference.
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Annettagiles
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Re: Birthday Puzzle.
« Reply #11 on: Sep 23rd, 2014, 4:17am » |
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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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