ADVERTISEMENT
Riddle:

A man grabbed a woman's ring and pulled on it, then dropped it. How did this save her life?

Answer:

They were skydiving, and she was unconscious. He pulled the ripcord ring for her, and the parachute opened.

Share On:
Comment
Riddle:

Two hours ago it was as long after one o'clock in the afternoon as it was before one o'clock in the morning. What time is it now?

Answer:

It would be 9:00 pm. There are 12 hours between 1:00 pm and 1:00 am and half of that is six hours. Half-way between would be 7 o'clock. Two hours later it would be 9:00 o'clock.

Share On:
Comment
Riddle:

I have three envelopes, into one of them I put a $20 note. I lay the envelopes out on a table in front of me and allow you to pick one envelope. You hold but do not open this envelope. I then take one of the envelopes from the table, demonstrate to you that it was empty, screw it up and throw it away. The question is would you rather stick with the envelope you have selected or exchange it for the one on the table. Why? What would be the expected value to you of the exchange?

Answer:

The answer might seem a little counter intuitive at first but we'll see...
The short answer is that it is in your advantage to exchange. But why?
Well initially there was a 1/3 chance that you were holding the envelope with the note in it and a 2/3 chance that the note was on the table.
This is still the case after one of the envelopes on the table has been removed, there is still a 1/3 chance that you have the note and a 2/3 chance of it being on the table.
If this is confusing then it may help to think that the questioner knows which envelope the $20 note is in, though in practice it doesn't actually matter. The questioner would always be able to demonstrate that the note was not in one of the envelopes on the table regardless of where the note was, so the fact that he was able to do this changes nothing.
Consider a different example....
Say there are a 1000 envelopes on the table, 1 with a note inside. You pick 1 envelope, the chance that this has the note in it is clearly 1/1000, where as the chance that it is still on the table is 999/1000. Odds are its on the table. Now the questioner could, assuming he can remember where the note is demonstrate to you that the note is not in 998 of the envelopes on the table. In this case nothing would have happened to change the fact that there is only a 1/1000 chance of you having the note.
That is why you exchange.
What is the value of the exchange?
Simply before the exchange you have 1/3 of $20 and afterwards you will have 2/3 of $20, ie the advantage to you is about $6.66

Share On:
Comment
Riddle:

A hiker comes to a fork in the road and doesn't know which way to go to reach his destination. There are two men at the fork, one of whom always tells the truth while the other always lies. The hiker doesn't know which is which, though. He may ask one of the men only one question to find his way. Which man does he ask, and what is the question?

Answer:

Either man should be asked the following question: "If I were to ask you if this is the way I should go, would you say yes?" While asking the question, the hiker should be pointing at either of the directions going from the fork.

Share On:
Comment
Riddle:

A man walked in to a bar and asked for a glass of water the bar man took out a gun and poined it at him the man who asked for the glass of water just smiled and walked away happy Why?

Answer:

He had the hicupps

Share On:
Comment
ADVERTISEMENT
Riddle:

Three cars had driven into a parking lot at the same time, and the three drivers left them all for the attendant to park. Unfortunately, he isn't too good at remembering exactly which driver drove which car. However, he is sure of these 6 facts: a. Colin drove the BMW if and only if Mr. Cooper drove the Avenger. b. Alan drove the Cortina if and only if Mr. Cooper drove the BMW. c. Colin is Mr. Brown if and only if Mr. Andrews drove the BMW. d. Brian is Mr. Andrews if and only if Colin drove the BMW. e. Mr. Cooper drove the Avenger if and only if Alan is Mr. Brown. f. Colin is Mr. Brown if and only if Alan drove the Cortina. Who arrived with which car?

Answer:

Brian Brown drove the BMW, Alan Andrew drove the Avenger, and Colin Cooper drove the Cortina.

Share On:
Comment
Riddle:

If the date of the last Saturday of last month and the first Sunday of this month do not add up to 33, what month are you in?

Answer:

The same month you are reading this.

Share On:
Comment
Riddle:

Did you hear about the soilder who bought a camouflage sleeping bag?

Answer:

He can't find it

Share On:
Comment
Riddle:

George was cleaning the windows on the eighteenth floor of an office block when there was a massive power failure. The electric hoist on his platform was immoblized.

So how did he manage to get down before the power was restored?

Answer:

George walked down the stairs. He was cleaning the inside of the windows.

Share On:
Comment
Riddle:

If place 1 cake of soap on a pan of a scale and 3/4 cake of soap and a 3/4-pound weight on the other, the pans balance.

How much does a cake of soap weigh?

Answer:

Since 1/4 cake weighs 3/4 pound, and entire cake weighs 3 pounds.

Share On:
Comment
ADVERTISEMENT