soop

The 9 is included in the ascending/descending rule, and the 39 is included in the double digits rule. Don't worry about the actual phone number, I'm not that bothered - she has my number! But still, that's some impressive work prime.

Before we start, I don't have an answer to this, it's just something of a puzzle I thought might be interesting. My Friend hit me up on facebook saying she'd lost her phone, and did I have her parents number, as she was coming back home. She was actually asking if I had it so I could call her, but I thought that she needed the number herself. I racked my brain, and couldn't quite get it. So using google maps, I found the road, then looked it up in the phonebook. Not there, but the nearby numbers jogged my memory, and I realised it started with [area code] 39, then 4 extra digits. So that's 9999 possible numbers right? Well, not quite. I know what it isn't, and that's: The same digit 4 times in a row (e.g. 390000) Two digits repeated (e.g. 392323, or 392233) consecutive numbers (e.g. 391234, or 394321) 3 consecutive numbers (e.g. 391237, or 397321) and I'm sure that the number in its entirety contains at least 4 different digits (including the 39, not the area code) Given the above, can anyone work out the actual number of permutations it could possibly be? And, while you could possibly sit and work it out bit by bit, I'd be interested if someone can do it mathmatically.

I think you're spot on.

Ok, this was kind of over my head, but it kind of gave me an idea.

pvgplayer has it. http://www.fas.org/irp/imint/docs/rst/Fron...d_IOD041102.jpg http://www.world-mysteries.com/mpl_2conc1.gif Check the wikipedia page

Nope, no-one has it yet

now and when it was completed - I'm not referring down to the levels of individual bricks or anything. And taliesin, nope

How many sides does the great pyramid of Giza have? I'm not including the base, just outward facing sides.

Yeah, I got it straight off. Did you know there was originally intended to be an exact replica in black facing it? *edit* apparntly that was a myth. Never mind

I got the second one, this was real good. I did get caught out by Mesmers lack of spoiler, but I doubt I would have got the second without knowing the 1st.

Oh, no way, that's totally not fair. I did the jigsaw (from a cube) to make a 18x8 long shape, but it says you have to cut the cube into 4 pieces, not cut the cube once, then reform it and cut another shape. That's not seriously the answer is it?

This is really good. I don't have it

oh, ok, that's possible then, sure

But pi is infinite, so even if after 3 billion years, you'd calculated pi to 5879355646271694 x 10 to the power 7836382 digits, you still wouldn't be close to a fraction of the number of digits of pi

2

You could get the exact number with infinite time, because pi is infinite. But I don't see how you could get "nearly exact" (although this is somewhat relative surely) with "nearly" infinite time. Nearly infinite is kind of an oxymoron.

I like the "rollerblading on a treadmill whilst hauling on a rope" anology

I don't know if anyone's answered yet... Dammit, just read someone else posted the same thing. And got the real answer.

OHHH!!! I get it now. I read this: http://www.straightdope.com/columns/read/2...-plane-take-off And it explains it; the plane doesn't stay in the same place. It goes forwards. That clears it up.

Blinkering refers to "blinkers" on horses. They're devices that restrict vision to a narrow straight-aheead field of view. That's the anology.