This is a probably my favorite one... no cheating! You have a bucket that holds 4 gallons of water and another bucket that holds 7 gallons of water. You have a faucet with an infinite supply of water. How can you end up with 5 gallons in the bucket?
Fill the seven, pour it into the 4 until the 4 is full. Then empty half out of the 4, and add it back to the seven. I have a feeling this isn't right since it's kind of easy. EDIT: it can be done more elegantly. Pour 4 gallons into the 7 from the 4, then refill the 4. Pour 3 gallons from the 4 into the 7. You're left with 1 gallon in the 4. Empty the 7 and add the 1 gallon that's left of the 4. Then refill the 4 and add it. That took me fucking ages to figure out. Had like a 10-long string of instructions, needed serious pruning for redundancy.
Don't think thats right, as I've interpret it you cannot only empty half the bucket The answer, I believe is (where big is the 7 gallon bucket, small 4 gallon) 1)fill small bucket, pour into big bucket: big bucket has 4 gallon, small 0 gallon 2)fill small, pour into big until full: big 7, small 1 3)empty big:big 0, small 1 4)pour small into big: big 1, small 0 5)fill small, pour into big: big 5, small 0 And done. Edit: Doh! Just realised what you wrote was identical to mine alchy! Sorry for doubting you A similar problem: The Kpelle children of Liberia tell a story about a man who has a leopard, a goat and a pile of cassava leaves to be transported across a river. The boat can carry zero or one items at a time, besides the man himself. The goat can not be left alone with the leopard and the goat will eat the cassava leaves if he is not guarded. How can he take the three items be them across the river, safely? No googling!
1) Take the goat across, come back alone. 2) Take the leopard across, return with the goat. 3) Take the cassava leaves across, return alone. 4) Take the goat across.
Yeah, that one is way too easy. In the US, it's told w/a fox, a chicken, and some bird seed. Okay, I've got a good one. There's a cabin in the woods. The doors & windows are sealed from the inside. Everyone inside is the cabin is dead. How did they die?
I love riddles I've heard the indian tribe one a couple of different ways. One is that you're in a room with two computer terminals and two doors. One door is an exit, the other leads to certain death. You can ask one question. The other is that you're walking along a path that splits and there are two old men. My contribution: Two mothers and two daughters go fishing. They each catch a fish, but total there are only 3 fish. How is that possible?
You are in a large sqaure dungeon, however there is a sqaure centre part to the dungeon which has a ladder in the centre to freedom. However between the centre part and where you are is a 2m lava moat. Now your thinking, I could take a running jump, 2M is nothing. Well there is a wall surrounding the moat, it is stuck to the top so you can see a small 50cm crawl space under the wall all away around the moat. You do however have two pieces of strong wood 10cm thick, 10cm wide and 1.5m long, an axe, 50cm sqaure piece of hankerchief, a box of matches and a piece of thick rope 50cm long. Diagram (not to scale......) Here be Dungeon ----------------- |** Lava moat **| |**|----------|<-- Wall in the way |**|********|**| |**|**|---|**|**| |**|**|.H.|<-------Island, H is the ladder to freedom. |**|**|---|**|**| * = Hot lava...
Think you're inside a sealed metal square box that is locked by the outside and in a lake, you got a battery lamp and a goat lamb. How do you get out?
It's one of the following, It is a harsh winter and they died from the cold. They were old and they died of old age. It's not a log cabin but a plane cabin and it's crashed and they died from the effects of the crash. The wood is in fact on fire and they died by being burnt to death