riddle

*facedesk*

I am going to rip out my hair for this.
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Ok this one is easy, it's more of a logic question than a riddle:

You have ten stacks of identical looking gold coins. Nine of the stacks contain all real gold coins, and one of the stacks is made up entirely of fake gold coins. Each real gold coin weighs exactly 1 gram, while each fake gold coin weighs exactly 1.1 grams. Using a digital scale, how can you determine the stack of fake coins?
RULES: You can only make one measurement. For example, you stack what you want on the scale, press a button, and get a readout of the weight. You can do this only once, and once the readout is displayed it does not change if you remove any coins. You can mix the coins up in their stacks, separate them, mark them, whatever. How do you find out for sure which stack contains the fake gold coins?

On the scale place one coin from the first stack 2 from the second stack 3 from the thrid stack 4 from the rourth stack etc

number in the decimal place gives the awnser

I can elaborate if you wish

correct.

another one:
Three mathematicians sit around a table and eat pizza. They are pretty hungry and their table manners are bad. After a while they look up from the pizza to find that the others have pizza on their nose, so all of them burst out in laughter. After a while, one of them stops laughing when he understands that he also has pizza on his nose. How did he know?

IIts probably wrong but.

Each it sitting across from each other. logicly if all is laughing then that means that they each see the funny occurrence. 1 figured this out.

No.

*Hint* All three are assumed to be good in logic.

Okay......you got me. Lets hear it.

Being the logical thinker that he was, he realized that if all of them have been eating the same way and all of the others had pizza on their noses, he must have some on his nose also.


next:

1. At least one of the sentences in this list is false.
2. At least two of the sentences in this list are false.
3. At least three of the sentences in this list are false.
4. At least four of the sentences in this list are false.
5. At least five of the sentences in this list are false.
6. At least six of the sentences in this list are false.
7. At least seven of the sentences in this list are false.
8. At least eight of the sentences in this list are false.
9. At least nine of the sentences in this list are false.
10. At least ten of the sentences in this list are false.

Which of the above sentences are true?

1?

BTW you truly have no idea how much I hate logic riddles.

P.S. Ive got another rapidshare upload request could you help me? If your busy then you can disregard this.

incorrect.
*huge hint*
"Which of the above sentences are true?"
which sentence would allow this statement to be true?

(I love logic riddles)

I suppose I can make the next one a normal riddle

nope

All of them.

incorrect
(don't overthink the question, look at the huge hint)

Can I ask the audience?

9?

CORRECT


another one:

Where in a room can I place a bag so that no one could jump over it?

woo and the corner

wot if the door is closed thou then anybody in the room could see it?