Lets have some changes here.....

[Fjold]

Screw it, who wants pie?

3.14159265358979323846............................ .......................

[phish]

jeez, it's not like we're snowed in our homes for the winter

remember what state we live in, take advantage of it!

[mblat]

Uh, dude, you butchered it... That "riddle" was never phrased to me that because it doesn't make sense....the trick question SHOULD be "what weighs more, a pound of feathers or a pound of lead?" (obviously, a pound of anything weighs the same as a pound of anything else). I have NEVER heard it phrased the way you did; that is just plain dumb.

Actually I've heard it phrased both ways many times........
Of cause I grew up in other country, we had somewhat different set of riddles...

[Kestryll]

Well, this has certainly gone downhill from it's beginnings.

Anyone wanna guess what happens next?

That's right boys and girls, THREADLOCK!

As for the 'pound of this and that, here you go.
1 troy oz = 480 grains
1 troy lb = 5760 grains

1 oz avoirdupois = 437.5 grains
1 lb avoirdupois = 7000 grains

There is an old joke "Which is heavier, a pound of lead or a pound of feathers?" Of course, they weigh the same. But if you said "Which is heavier, a ounce of gold or a ounce of feathers?", then you could claim that the gold is measured in troy and the feathers in avoirdupois, and so the gold is indeed heavier. But a troy pound of gold is lighter than a pound (avoirdupois) of feathers!
The weight of feathers in a vacuum is different than those same feathers at STP (buoyant force, Archimedes' Principle). In fact, if you took a pound (mass) of lead and feathers, and weighed them on scales (on Earth, which has an atmosphere), the lead would be heavier. This is because the feathers displace more air (for non-scientists, something similar to what makes things float.)
The original joke depends partly on getting weight and volume muddled up. However, we also know that if you dropped a feather, and a piece of lead, the feather would take longer to drop as it would float off to one side then the other. This is because of air resistance. One of the experiments when men went to the Moon was to drop a feather and a piece of lead together. It looked extremely strange to see them drop at the same speed!