Two Girls On A Train
Two schoolgirls were traveling from the city to a dacha (summer cottage) on an electric train.
"I notice," one of the girls said "that the dacha trains coming in the opposite direction passes us every 5 minutes. What do you think-how many dacha trains arrive in the city in an hour, given equal speeds in both directions?"
"Twelve, of course," the other girl answered, "because 60 divided by 5 equals 12."
The first girl did not agree. What do you think?
"I notice," one of the girls said "that the dacha trains coming in the opposite direction passes us every 5 minutes. What do you think-how many dacha trains arrive in the city in an hour, given equal speeds in both directions?"
"Twelve, of course," the other girl answered, "because 60 divided by 5 equals 12."
The first girl did not agree. What do you think?
Hint:
If the girls had been on a standing train, the first girl's calculations would have been correct, but their train was moving. It took 5 minutes to meet a second train, but then it took the second train 5 more minutes to reach where the girls met the first train. So the time between trains is 10 minutes, not 5, and only 6 trains per hour arrive in the city. Did you answer this riddle correctly?
YES NO
YES NO
Never In Time Riddle
Hint:
The Odds Of A Boy Riddle
Mr. Smith has two children. If the older child is a boy, what are the odds that the other child is also a boy?
Hint:
Two Girls Born The Same Day Riddle
Hint:
Spell Sexy Riddle
Hint:
Lost Intelligence Riddle
Hint:
The Window Of Time Riddle
I am the window of time,
In which a single scene,
Always and never the same,
Forms on a shimmering screen;
The well of eternity,
Receding in the center,
Through which infinity
Beckons where none can enter.
What am I?
In which a single scene,
Always and never the same,
Forms on a shimmering screen;
The well of eternity,
Receding in the center,
Through which infinity
Beckons where none can enter.
What am I?
Hint:
Nobody Can Lose Me Riddle
Hint:
A Boy Who Talks To Animals
I lived in London
I wear a yellow dress
I go to Africa to study gorillas
I met a boy who talks to the animals
Who am I?
I wear a yellow dress
I go to Africa to study gorillas
I met a boy who talks to the animals
Who am I?
Hint:
A Boy Born In May Riddle
How could a boy be born in May, although his birthday was in June, and then grow up and marry his mother?
Hint:
He could be born in the month of June in a town called May. When he grows up, he could officiate his mother's wedding and "marry" her to someone else. Did you answer this riddle correctly?
YES NO
YES NO
Lost Wolf Riddle
Hint:
The Bats Boyfriend Riddle
Hint:
Losing A New York Bet
You are hanging around in NYC when a person approaches you.
"Leaving the bald people aside, I can bet a hundred bucks that there are two people living in NYC who have same number of hairs on their heads," he says to you.
You say that you will take the bet. After talking to the man for a couple of minutes, you realize that you have lost the bet.
What did the person say to you that proved his statement ?
"Leaving the bald people aside, I can bet a hundred bucks that there are two people living in NYC who have same number of hairs on their heads," he says to you.
You say that you will take the bet. After talking to the man for a couple of minutes, you realize that you have lost the bet.
What did the person say to you that proved his statement ?
Hint:
This problem can be best solved using the pigeonhole principle.
The argument will go like this:
Assume that all the non-bald people in NYC have different number of hairs on their head. The population is about 9 million and let us assume that there are 8 million among them who are not bald.
Now, those 8 million people need to have different number of hairs. On an average, people have just 100, 000 hairs on their head. If we keep on assuming that there is someone with just one hair, someone with two, someone with three and so on, there will be 7, 900, 00 other people left who will have more than 100, 000 hairs on their head and need different number of hairs.
Now, as per this assumption, if we keep increasing one hair for each person, to make everybody hair different in numbers, we will come across someone with 8, 000, 000 hairs. But that is practically impossible (even 1, 000, 000 is impossible). Thus there must be two people who are having same number of hairs. Did you answer this riddle correctly?
YES NO
The argument will go like this:
Assume that all the non-bald people in NYC have different number of hairs on their head. The population is about 9 million and let us assume that there are 8 million among them who are not bald.
Now, those 8 million people need to have different number of hairs. On an average, people have just 100, 000 hairs on their head. If we keep on assuming that there is someone with just one hair, someone with two, someone with three and so on, there will be 7, 900, 00 other people left who will have more than 100, 000 hairs on their head and need different number of hairs.
Now, as per this assumption, if we keep increasing one hair for each person, to make everybody hair different in numbers, we will come across someone with 8, 000, 000 hairs. But that is practically impossible (even 1, 000, 000 is impossible). Thus there must be two people who are having same number of hairs. Did you answer this riddle correctly?
YES NO
Calendar Girls Riddle
Hint:
Simba's Girlfriend Riddle
Hint:
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