Two boys approach the shore of a river. There is a boat, but only one boy can fit in. The only way to get to the other side is by boat, and the boat is unable to move itself. Given this puzzle has a solution, how can both boys get to the other side?
204526
the boys come from different sides of the river
148583
^ That isn't the only link one could find to this riddle.\n\nWhy has it been posted like 25 times in the last week?\n\nOk I previously stated that I felt the best answer was "pressure" but I am retracting that.\n\nIf you look at the riddle, the only part that actually states a question is the last line which reads "Can you guess the riddle?"  I would bet that Kindergarten students would just be like "ha... no!" while Harvard students would be driven nuts.\n\n And well, NO is the correct answer.  \n\nSo what is the rest of the riddle there for?  Well probably because its a riddle and that is the superfluous information.
565346
I'm sorry but there are far too many variables to this question.  How gradual is the 90deg turn made?  Which direction is the current flowing?  The person may well be launched but since he is the only person in the boat he, presumably is steering it and as such will be prepared for the 90deg turn.  The boat may also capsize but again, this depends on the points I have made above.
484509
it floats!  water won't enter the boat if it floats on top of the water?
512161
You haven't given me any information with which to solve this problem.  How big are the blocks?  How much do the blocks weigh?  How far apart are they?  How much resistance is there when I push the first block?   How fast is the first block going when it is pushed?  Without all this I cannot figure out how much momentum is lost between the time the first block is pushed and when it hits the second block or if the second block will have enough momentum to move at all or make the third block move if it contacts it.\n\n\nBy the way, you cannot solve this without knowing how much each block weighs, how much momentum it has to begin with, how much friction there is (to reduce momentum), and how far each block has to travel before it contacts the next one.    You need to have the variables to create a formula. \n\nGeeze, don't you hate it when idiots try to act smart????
396019
No weirdo's yet\nIf a canoe with 6 wheels is rolling down a hill, how many pancakes will it take to build a doghouse?\nIn a good mood, yes I am, bad mood, leave me alone
143360
I can't believe that no-one has solved this !!!!!!\n\nThe father is currently 39 years old.\nThe son is currently 16 years old.\n\n- In 2 years time, the son will be 18 years old.\n- The father was 36 years old when he was "twice as old as the son will be in 2 years time".\n- The father was 36 years old....3 years ago !!!!\n- 3 years ago......the son was 13 years old....the father is now 3 times that age !!!!!\n\n- That leads to the first quote.....The father is 39 years old....which is 3 times as old as when the son was 13 years old (at which time the father was 36 years old...which was twice as old as the son will be in 2 years time).\n\nI really hope that you follow this !!!!!!!\n\nIf not, send me an e-mail and I'll try to explain it in a simpler manner !
594579
Trick question! They aren't even on the same road!
525043
Nice question.\n\nThe answer is.\n\nIf I was to ask your brother which road would he tell me to take to get to the good village. \n\nThe good twin would point to the road that leads to the bad village because that is where the bad twin would point. \n\nThe bad twin would point to the road that leads to the bad village because the good twin would point to the road that leads to the good village. \n\nSo you would take the opposite road that you were shown.
575170
You have two triangles. Use the pythagoreum theorum to figure out the hypotenuse to each. Ad the length of the two hypotenuse and you have your answer.\n\na2+b2=c2 where a2 is one side of triangle and b2 is the other side of the triangle.\n\n6(2) + 3(2) = 45\n\ntake the square root of 45 and double it for your answer.\n\nRemember that the catch is that the trucks take left turns. If they start out back to back; one heads west, the other heads east, if each take left turns, one will be going north, the other south, thus the two triangles.
180317
if you can get the puzzle, you can get answers at http://www.sudokufun.com/ if that helps you at all. :)
19928
you are missing some line on this famous question.\nThere were two men.he asks the first one a question then ask the other one also a question then he decides to choose the road.
543727
Some people must listen to good logic and not blindly go through with the Mathematics. If the water rises, the boat will too. Boats float on water.
181961
canoe or kayak? i don't mind taking a trip down a river in a canoe, but kayaks scare the living bejeebies outta me. what happens when you flip over and can't get rightside up?!?
522588
Can you please check you haven't made a mistake somewhere? I have just calculated (with 99% certainty) that there are no solutions to those equations with those restrictions.\n\nEdit - OK, I assumed you made exactly one mistake. By removing each possible word and trying to solve it, I discovered that removing 'SIGH' was the only option that gave an answer.\nt 1\nh 8\na 3\nn 7\nk 6\ns 5\ng 9\ni 4\nv 2\nwhere SIGH = 26, not 25. Then THANKSGIVING = 65.\n\nThat was actually a cooler puzzle that the original, assuming you made one mistake :)
409143
She lands 0.7332 miles from the point on the shore which is 2 miles from the boat(call this point A) Note: the point where she should land (call it B) does not depend on the distance to the village but only upon the relative speeds of walking and rowing.\nLet x be the angle from the perpendicular she heads towards the shore and d be the distance in miles that the boat will travel at this angle, then 2/d = cosx and so d = 2/cosx miles.The amount of time taken to go this distance is d/2mph =1/cosx hrs.\nShe will land at point B that is y miles from point A and y/d = sinx so y = d*sinx = 2sinx/cosx miles.\nIf the distance to the village is D then she will have to walk D-2sins/cosx miles to the village. This will take her (D-2sinx/cosx)/5 hrs\nThe total time,t , taken is therefore\n\nt = (1/cosx +(D-2sinx/cosx)/5) hrs \n\ndt/dx = (secx*tanx) -(2/5)sec^2(x) \n\n= secx(tanx-(2/5)secx)\n\nSince secx is never 0, the derivative will be 0 when tanx = 2/5*secx, which is true when sinx = 2/5 and cosx=0.917\n\nSo y = 2sinx/cosx = 0.7332 miles from point on the shore closest to the boat.
175963
Go out with the other boy.  If he has that something that's missing then choose him.  If he doesn't than stick with who you're with and try to figure out what's missing or find someone else.