It takes a clock
Logic puzzles require you to think. You will have to be logical in your reasoning.
It takes a clock 2 seconds to strike 2 o`clock.
How long will it take to strike 3 o`clock?
Answer
It will take 4 seconds.
Since the clock strikes 2 o`clock in 2 seconds, these two seconds are the interval between two strikes. Between the first and the third strike there are two intervals, so it will be 4 seconds.
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Comments
MrIxolite
Jul 17, 2003
 Surely if its just struck two o clock it will take an hour for it to strike 3 o clock? :p 
fishmed
Aug 28, 2003
 That was funny. I agree. It would take the hour for the clock to strike 3. Good one though. 
boodler
Nov 25, 2005
 Two people either willfully or unconciously misreading the question! Quite easy if you think about it 
stephiesd
Dec 19, 2005
 i don't get it. wouldn't the two seconds include the actual chiming? 
musicmaker21113
Jan 12, 2006
 I agree with all these comments, actually. My first answer was 1 hour... since you'd have to wait until it was 30.
My second answer was actually three seconds, with this reasoning:
2 chimes took 2 seconds. That mean the first chime started to ring on the hour and rang for 1 second, the second chime started at 1 second past the hour and rang for 1 second. So, 1 second per ring... 3 seconds.
Good idea for a teaser, just open to interpretation a bit.

Atropus
Feb 12, 2006
 The teaser is completely correct, if you assume that it takes NO time for the clock to chime and you are measuring the gap only...
If you had an imaginary clock that could chime for zero seconds O_o.. there would be a 2 second gap between the first and second chimes (then it would take 4 seconds to chime 3 times).
If it took half a second for the clock chime (sound).. that would leave a 1 second gap between chimes (then it would take 3.5seconds to chime 3 times).
However.. IF the chime (sound) took 1 second, there would be NO gap at all (so it would take 3seconds to chime 3 times).
(hmmm verbosity alert _;) 
keveffect1
Mar 07, 2006
 Yeah the teaser is right but I also think it's dull and stupid 
coltonr1
Mar 15, 2006
 noooo finaly 1 got me lol nice job 
TehIgnored
Mar 28, 2006
 I think you just need to add a point of reference....stating where it's starting before moving to 2....
it could have started at 12....which is my assumption....then 12 to 1....1 to 2.....that's 2 seconds....1 second per interval.....
In fact...the more I think about it, the more I disagree with this being solvable......you WOULD need a point of reference to obtain a logical answer....otherwise it's a trick. 
perrygf
Jun 21, 2006
 I also took the time of the chime into account, particularly because chimes on clocks tend to resonate. (I also thought of the "hour" answer, but the question really didn't ask how long from NOW, but how long WHEN IT HAPPENS). Nice trick, though. 
ava199345
Jul 19, 2006
 im not gonna get into a long discussion about it. im gonna say straight up that i just didnt get it 
ciotog
Feb 11, 2007
 According to the logic of the answer, it takes zero seconds to chime 1 o'clock. Does that seem reasonable? 
Jimbo
Mar 19, 2007
 Well if you stand with a stopwatch at the foot of the clock and press start when you hear it strike 'ONE', when are you going to press stop? Let's put it this way if you are driving in your car and it takes 2 seconds to pass 2 power poles then it would take 4 seconds to pass 3 power poles and you can't time the interval required to pass one pole. 
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