The explanation (NSFW) explains it although thats says 'first, middle and last' rather than 'left, middle and right'
Still don't get it mate? How can you tell the first and second ones are lying? I know I'm probably being stupid and missing something obvious here.
The first one MUST be lying. She says the middle one is Sarah. But Sarah tells the truth, and the middle one says she's Sally. Therefore the middle one isn't Sarah
Well, if Lucas thought that last one ****ed with his mind, wait until he tries to work this one out... A bicycle rider went a mile in three minutes with the wind, and returned in four minutes against the wind. How fast could he ride a mile if there was no wind? Answer: [NSFW]Contrary to the popular answer to problems of this kind, that if a rider goes a mile in three minutes with the wind, and returns against the wind in four minutes, that 3 and 4 equal 7, should give a correct average, so that his time should be taken to be 3 and a half minutes. However, this answer is incorrect, because the wind has helped him for only three minutes, while it has worked adversely for four minutes. If he could ride a mile in three minutes with the wind, it is clear that he could go a mile and a third in four minutes, and one mile in four minutes against the wind. Therefore two and one-third miles in eight minutes gives his actual speed, because the wind helped him just as much as it has ******ed him, so his actual speed for a single mile without any wind would be 3 minutes and 25 and 5/7 seconds.[/NSFW]
I'll get back to you on this one. I think it has something to do with calculating the harmonic mean, but it was a LONG time ago that I studied this.
This is a complicated one: please log in to view this image The hour and minute hands are at equal distance from the 6 hour, what time will it be exactly? Answer: [NSFW]Say answer is "8 hour X minute". According as proposition, the angle between the minute hand and "mark 4" of the watch is equal to the angle between the hour hand and "mark 8" of the watch. We know in 60 minutes the minute hand makes 360 degrees (360/60=6 degrees per minute) and the hour hand makes 360/12=30 degrees (30/60=1/2 degrees per minute). Therefore, (20-X) minutes corresponds to 6(20-X) degrees (this is the angle between the minute hand and "mark 4"). And in X minutes the hour hand makes X/2 degrees with "mark 8". Thus, X/2=6(20-X) gives X=18 minutes 27 and 9/13 second. So, the answer is 8 hour, 18 minutes, 27 9/13 second.[/NSFW]
Easier one: Spaghetti is famous for the way it all gets tangled up on the plate. Those of you who think they know their alphabet are bound to get all tangled up with this puzzle too, unless you read it and think about it very carefully! What letter of the alphabet is the one which comes nine letters before the letter which comes three letters after the first letter to occur four times in this sentence? Answer... [NSFW]"n" You get this by working backwards through the puzzle: the first letter to occur four times is t, three letters after that is w, and nine letters before that is n.[/NSFW]
Old Farmer Palmer has a herd of 24 cows, but he always seems to forget how many animals there are. When he counts them he just makes sure he can see 6 cows from each window of the 4 windows of his house. One night, however, Russell the Rustler took away half of the herd. Farmer Palmer didn't notice for ages because the next morning he could still see 6 cows from each window. Why?
A man is stranded on an island covered in forest. One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process. There are cliffs around the island, so he cannot jump off. How can the man survive the fire? (There are no buckets or any other means to put out the fire) [NSFW]The man picks up a piece of wood and lights it from the fire on the west end of the island. He then quickly carries it near the east end of he island and starts a new fire. The wind will cause that fire to burn out the eastern end and he can then shelter in the burnt area. The man survives the fire, but dies of starvation, with all the food in the forest burnt.[/NSFW] Merry Friday everyone
When the fire eventually burns out he'll have lots of gulls eggs to eat from nests in the cliffs, jeez he's a lucky castaway.
