[RESOLVED] Its a challenge

[Tommy.net]

Its a general aptitude exam question that i faced in one of my interviews:

Two twins have certain peculiar characteristics. One of them always lies on Monday, Wednesday, and Friday. The other always lies on Tuesdays, Thursdays and Saturdays. On the other days they tell the truth.

You are given a conversation.

Person A-- today is Sunday my name is Anil
Person B -- today is Tuesday, my name is Bill
What day is today?

Ans: Today is Tuesday

any explanation for this answer?

[dclamp]

They Both tell the truth on Sundays, so it cant be Sunday, or else both of them would have said "Today is Sunday"

[penagate]

Today is actually Thursday.

[Tommy.net]

They Both tell the truth on Sundays, so it cant be Sunday, or else both of them would have said "Today is Sunday"

but u did not explained why the answer is tuesday

[Tommy.net]

Today is actually Thursday.

Not an intelligent answer

[penagate]

Well, I don't know about that. I was trying to demonstrate how you might answer the question using lateral thinking. The question itself, after all, makes no reference to the twins' statements.

[mendhak]

If it were Sunday, then B wouldn't have said Tuesday.
So it is not Sunday, A is lying.
Which means B is telling the truth.

[Tommy.net]

@mendhak:You may also ask this question to the candidates in an interview

[namrekka]

Are the twins genetically different or genetically identical?

[MarMan]

One of them is telling the truth, since they both can't lie on the same day. That's how you know its Tuesday.

[stlaural]

I've also been ask this kind of logical question in the past

Two guys, one always lies, the other always tells the truth.
Each one of them is guarding a door, one door leads to your death, the other one sets you free.
You can only ask one question to only one of the guys.
Based on the answer you get you should be able to know for sure which door is the safe one.
(Hope these explanations a clear enough)



Oh and another one :
A guy stands in front of his King for a crime he commited.
The King tells him : "If the next thing you tell me is the truth, I'll cut your troat, if its a lie I'll kill you by fire."
The guy survived, what did he said ?

[MarMan]

For the first one you ask "What door would the other guy tell me to take"
The lyer would tell you that the truthful guy will tell you to take the door to your death.
The truthful gut will tell you the lyer will tell you to take the door to your death.
Just take the door opposite the one the guy tells you to take.

Waiting in suspense for the second answer......

[stlaural]

Yeah you got it

the other one seems so obvious once you know it.
good luck.

[abhijit]

For the second puzzle: "I am going to die by fire". That throws a spanner in the works, so the King forgives him.

[stlaural]

that's it!

[dclamp]

They Both tell the truth on Sundays, so it cant be Sunday, or else both of them would have said "Today is Sunday"

If it were Sunday, then B wouldn't have said Tuesday.
So it is not Sunday, A is lying.
Which means B is telling the truth.

We have the same answer!

[abhijit]

There's a radio show called cartalk on NPR which has a puzzler section in it. Some of the puzzles are unique.

[demotivater]

Who would name their kid Anil?

[zaza]

I once knew a kid called Anil Ghoal. Nobody ever made fun of him.

[abhijit]

Who would name their kid Anil?

Lots of Hindu people, for one.

In Sanskrit, it means Air or Wind.

[minitech]

Someone who named the other twin "Bill"?