cornerstone Posted July 23, 2006 Report Share Posted July 23, 2006 I have a bunch of cards with some brain teasers on them. A few of them are good, some of them are easy, quite a lot of them are annoying. I figured that whereas the annoying ones are normally, well, annoying - they could provide a bit of scope for some funnies too. So feel free to play along, or wind everyone up as well. There is only one rule: the 'right' answer is always what is written on the card. Take it as a given that I agree with you that there were a million better answers - it's us versus the quesion card for shits and giggles. Here's a relatively easy and uncontroversial clock-related question to start things: TwoTone has a clock that chimes on both the hours and the half hours. The clock strikes once for each half hour, once for one o'clock, twice for two o'clock, three times for three o'clock, etc. As TwoTone commando rolled into his house one day, he heard the clock chime once. A half hour later it chimed once again. A half hour later it chimed once, and a half hour later it chimed once again. Since the clock is working properly (of course), what time was it when TwoTone entered his house? Quote Link to comment Share on other sites More sharing options...
KB Posted July 23, 2006 Report Share Posted July 23, 2006 it was 12 pm/am TT heard the last chime of the hour when he arrived. So where's me bloody cupie doll Ken Quote Link to comment Share on other sites More sharing options...
cornerstone Posted July 23, 2006 Author Report Share Posted July 23, 2006 it was 12 pm/am TT heard the last chime of the hour when he arrived. So where's me bloody cupie doll Ken And the card says..... "It was just moments after twelve o' clock." WINNER! Okay, great start, another one coming right up! Quote Link to comment Share on other sites More sharing options...
cornerstone Posted July 23, 2006 Author Report Share Posted July 23, 2006 Okay....! As I said, you have to get what is written on the card! A survey was conducted of all the various mechanical modes of transportation people use to get to work each day. What did it find was the most common form of transportation? Quote Link to comment Share on other sites More sharing options...
KB Posted July 23, 2006 Report Share Posted July 23, 2006 Not for me, I'm off to bed I'll catch ya tomorrow Goodnight Ken Quote Link to comment Share on other sites More sharing options...
KB Posted July 23, 2006 Report Share Posted July 23, 2006 Okay....! As I said, you have to get what is written on the card! A survey was conducted of all the various mechanical modes of transportation people use to get to work each day. What did it find was the most common form of transportation? Oh all right........................their legs.......................goodnight Ken Quote Link to comment Share on other sites More sharing options...
cornerstone Posted July 23, 2006 Author Report Share Posted July 23, 2006 Oh all right........................their legs.......................goodnight Ken Hmm...mechanical legs. I like it! "It's good, but it's not right...!" (Have a good one!) Quote Link to comment Share on other sites More sharing options...
TJGladeRaider Posted July 23, 2006 Report Share Posted July 23, 2006 Okay....! As I said, you have to get what is written on the card! A survey was conducted of all the various mechanical modes of transportation people use to get to work each day. What did it find was the most common form of transportation? I would say the bicycle. Bill Quote Link to comment Share on other sites More sharing options...
TwoTone Posted July 23, 2006 Report Share Posted July 23, 2006 I would say the bicycle. That was my thought... Quote Link to comment Share on other sites More sharing options...
Pugwash Posted July 23, 2006 Report Share Posted July 23, 2006 I would say the bicycle. I'd say that it depended on which country they asked the question in. Quote Link to comment Share on other sites More sharing options...
KB Posted July 23, 2006 Report Share Posted July 23, 2006 Ok then when you factor in the Asian countries I would have to agree with the bicycle. Now here's a question, has anyone ever had a prob tracking down their car in a large mall carpark. Ok so these Asians often work in factories with many hundreds of co-workers who all ride in on bikes (many identical), so how do they find their bike's at the end of the day? Ken Quote Link to comment Share on other sites More sharing options...
melvin.x Posted July 23, 2006 Report Share Posted July 23, 2006 I´d guess it´s an elevator... Quote Link to comment Share on other sites More sharing options...
KB Posted July 23, 2006 Report Share Posted July 23, 2006 I´d guess it´s an elevator... Good answer Just to explain my original answer, the question only stated mechanical there was nothing pointing to man-made, so I chose Bio-mechanical...............yes I know it's not on the card and I will play by the rules Ken Quote Link to comment Share on other sites More sharing options...
cornerstone Posted July 24, 2006 Author Report Share Posted July 24, 2006 I´d guess it´s an elevator... And the card says..... "The lift" WINNER! Good work! Every point made, by the way, was a good one. I'm sure that about 3% of domestics are caused by brain teasers. By comparison, 72% are Ikea-related. Okay I have another one: Imagine a bridge 4 km long and strong enough to hold 10,000 kg, but no more. A loaded transport truck weighing exactly 10,000 kg drives onto the bridge. At the half way point, a sparrow weighing 30 g lands on the truck, yet the bridge doesn't collapse. How could this be? Quote Link to comment Share on other sites More sharing options...
KB Posted July 24, 2006 Report Share Posted July 24, 2006 Because the truck is moving, 10,000kgs is the trucks stationary weight. Ken Quote Link to comment Share on other sites More sharing options...
cornerstone Posted July 24, 2006 Author Report Share Posted July 24, 2006 Because the truck is moving, 10,000kgs is the trucks stationary weight. Ken Intriguing idea. The quick answer is: that's not what the card says. I actually googled around for this to satisfy my own curiosity - there is obviously a relationship between speed and mass in E=mc2. The answer appears to be that moving objects actually increase in mass (but only by the tiniest amount until you hit the speed of light) as speed increases. To give you an idea of how small the increase is: a 100,000 kg jet travelling at 2,000mph would increase in mass by only half a milligram (roughly). All news to me! Any other suggestions out there for the truck? Quote Link to comment Share on other sites More sharing options...
KB Posted July 24, 2006 Report Share Posted July 24, 2006 Well how about, the truck never made it half way because the weight of the driver already sent it plunging to the murky depths. Ken Quote Link to comment Share on other sites More sharing options...
KB Posted July 24, 2006 Report Share Posted July 24, 2006 Ok I have just found out that your sparrow is too big, they average 22.5 grams with the big fat ones tipping the scales at 29 grams. So I don't think your 30 gram sparrow exists...........so there Ken Quote Link to comment Share on other sites More sharing options...
cornerstone Posted July 24, 2006 Author Report Share Posted July 24, 2006 All I can say is, the card does not mention fat sparrows! But I like it! "It's good, but it's not right...!" Quote Link to comment Share on other sites More sharing options...
KB Posted July 24, 2006 Report Share Posted July 24, 2006 Hmmm Quote Link to comment Share on other sites More sharing options...
cornerstone Posted July 24, 2006 Author Report Share Posted July 24, 2006 Elementary my dear Watson. The sparrow landed upon the truck when it was precisely over the mid-span support tower. The bridge span wasn't supporting the truck+sparrow, the brick columns were. Nice thinking - but again it's not what it says on the card... "It's good, but it's not right...!" Quote Link to comment Share on other sites More sharing options...
irongambit Posted July 24, 2006 Report Share Posted July 24, 2006 There's a difference between inertial mass and gravitational mass. Quote Link to comment Share on other sites More sharing options...
cornerstone Posted July 24, 2006 Author Report Share Posted July 24, 2006 There's a difference between inertial mass and gravitational mass. The card says..... "It's good, but it's not right...!" Quote Link to comment Share on other sites More sharing options...
Pugwash Posted July 24, 2006 Report Share Posted July 24, 2006 The card says..... The truck weighed the limit when it got on the bridge but, as all motor-sport fans will tell you, the weight at the end of a race is lower than at the beginning. This in particular is why Valentino Rossi is better at the end of a race than at the beginning, as the fuel-tank is less full and therefore lighter. The truck used 30g of fuel to get to the midway point. Quote Link to comment Share on other sites More sharing options...
irongambit Posted July 24, 2006 Report Share Posted July 24, 2006 Well done Pugwash. Here I was trying to make it all difficult Quote Link to comment Share on other sites More sharing options...
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