23-10-2002 23:07									#181
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Yes of course! Well done!

Silly me...

	23-10-2002 23:15									#182
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There are three switches in a room on the first floor and a lamp on the third floor. Each one is labeled On and Off. One (and only one) of the switches controls the lamp. There is no possible way for you to see whether the light is on or off from the first floor. You are alone in the house.


You are allowed to turn on and off the switches as often and as long as you'd like.
However, you can only go upstairs once to check on the status of the lamp.
Determine which switch controls the lamp.

	23-10-2002 23:40									#183
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Turn the first switch on and leave it for an hour then turn it off again.

then turn on the second switch and go upstairs.

if it's on it's the second one, if it's off but the bulb is warm it's the first switch otherwise it's the third one???

	23-10-2002 23:50									#184
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Correct. What if it had been a neon lamp.


Your turn.

	24-10-2002 00:01									#185
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quote: Originally posted by rah Correct. What if it had been a neon lamp. Your turn.

I guess I would have turned it on and off untill the bulb blew instead.

ok here's the only one I can think of.


Dave sells flour in quantities of 1 - 40 grams.
He buys a weighing scales to weigh out the flour and buys 40 weights ranging from 1 - 40 grams.

Smart Bob sees this and tells Dave that he didn't need to buy so many weights. For example he didn't need to buy a 5 gram weight as the 4 gram and 1 gram weight could have been used together, alternatively the 7 gram could have been placed on one side and the 2 gram weight placed on the other side to create a net weight of 5 grams.

Smart Bob then goes on to say that Dave needed only to buy 4 different weights.

What are the 4 weights which can be used to create net weights of all the values from 1 to 40???

	24-10-2002 00:45									#186
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1, 3, 9, 27.

1=1
2=3-1
3=3
4=3+1
5=9-3-1
6=9-3
7=9-3+1
8=9-1
9=9
etc.
(If you add a number, put the weight on the other side from the flour. If you subtract, put it on the same side.)

	24-10-2002 00:52									#187
	Support Apolyton, buy Civilization 2

1,3,9,27. That took a bit of trial and error. I'm sure there's a formula for it.

RAH

	24-10-2002 01:02									#188
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There is. First is 1, or 3^0. Then 3, or 3^1. Then 9, or 3^2. And finally 27, or 3^3.

Oh yeah, and I got it first.

	24-10-2002 01:07									#189
	Remove this text

Yes, it was a crosspost, and you were first. When I started jotting you hadn't posted yet. Congrats.

Your turn.

I was just going to use the old classic from "DIE HARD with a Vengence" with the 5 gallon and 3 gallon container.

	24-10-2002 01:22									#190
	Support Apolyton, pre-order Civilization IV

Naw, you do one. I'm leaving the forums now.

But...

I SHALL RETURN! Mwahahahaha!

(Yes, that was pointless.)

	24-10-2002 01:47									#191
	Support Apolyton, buy Alpha Centauri

The real teaser is getting this site to respond.

I'll go with the classic then.

You have a 5 gallon, a 3 gallon container and a pool of water. End up with exactly 4 gallons of water in the 5 gallon container, or the bomb blows up.

	24-10-2002 02:09									#192
	Support Apolyton buy from Amazon

Fill the 5g from the pool.
Pour into 3g from 5g.
Empty 3g.
Pour into 3g from 5g.

Now there is 2g in the 3g container

Fill the 5g
Pour into 3g until full.

You now have 4g in 5g container.

	24-10-2002 16:53									#193
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Well, where's the question?

	24-10-2002 22:05									#194
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Oh right, its me is it? Err, give me a while to find/think of one.

While your waiting, anyone know the original reason for store items to be priced at just under a whole amount (e.g £9.99 as opposed to £10, or $4.95 instead of $5)?

And 'twasn't to make things look cheaper.

Edit - no to know. D'oh

	24-10-2002 22:09									#195
	Support Apolyton or Terrorists Win

Ok here is a nice and easy one...

Two men are paddling a rowboat. Suddenly the boat runs into something and comes to an abrupt stop. The man in the front of the boat gets thrown out of the boat. Although he hits nothing but water, when he climbs back into the boat, he is completely dry. How come?

	24-10-2002 22:11									#196
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Because although his body is wet, his wit is consistently dry.

	24-10-2002 22:40									#197
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His wit may be dry, but that is not the answer.

	24-10-2002 22:43									#198
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cuz he went and dried off first.

	24-10-2002 22:52									#199
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cuz they ran into an iceburg.

	24-10-2002 22:56									#200
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A riddle from a game that was o.k..... Betrayal at Krondor. easy one.

Light as a feather, I float free. Yet even the strongest Ogre cannot pick up me.

	24-10-2002 22:56									#201
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Can you get the other one too?

	24-10-2002 22:58									#202
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quote: Originally posted by NeOmega A riddle from a game that was o.k..... Betrayal at Krondor. easy one. Light as a feather, I float free. Yet even the strongest Ogre cannot pick up me.

A bubble?

	24-10-2002 23:04									#203
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Ice, snowflake.

	24-10-2002 23:06									#204
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bubble yup

	24-10-2002 23:09									#205
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what other one?

	24-10-2002 23:19									#206
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quote: Originally posted by Sagacious Dolphin [what was] the original reason for store items to be priced at just under a whole amount (e.g £9.99 as opposed to £10, or $4.95 instead of $5)? And 'twasn't to make things look cheaper.

	25-10-2002 00:19									#207
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A couple of theories.....

1. to feel justified in shaving a bit of gold off a coin.

2. To be able to keep the entire change amount.

	25-10-2002 00:29									#208
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A couple of other theories.

1 Something to do with tax perhaps tax was done per £5 or something like that?

2 So that people had something top put into chartiry boxes next to the till.

	25-10-2002 02:15									#209
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quote: Originally posted by Sagacious Dolphin While your waiting, anyone know the original reason for store items to be priced at just under a whole amount (e.g £9.99 as opposed to £10, or $4.95 instead of $5)?

I spend much of my Sundays pondering this. It struck me that if you price things just under an amount, people are likely to pay that amount. (eg. £4.99, people give you a fiver) you give a penny change.

This is a damn sight easier than pricing stuff at £5.01, and giving 99p change when they give you £6, or more likely, £4.99 change when they give you a tenner.

Of course, in practise, this is all rubbish, as people will pay with a £20 note however cheaply you price things.

	25-10-2002 02:41									#210
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It doesn't matter where I live, we have sales tax anyways. Totally messes all the even prices up.