QUOTE(DSTM @ Jan 4 2007, 05:13 AM)

That is a clever answer.I would have never thought of that.
The answer I got was being a large truck,the truck used more fuel travelling the half mile than the weight of the bird,so the bridge did not collapse.
I'm not sure I would have thought of the fuel level answer

I can't take full credit for the canary answer though, I simply remembered a story my dad told and applied it to the brain-teaser. The story was about a truck-driver who kept getting out of the truck to bang on the side of the truck.
--------------
I'm working on a solution to fozzie's brain-teaser.
How's this? Pick a piece of fruit from the box that says "Apples and oranges". Because we know it's labeled wrong, we'll then know that whatever fruit comes out of the box, that box will be entirely that item.
So - let's say the box labeled as the mix produces an orange. Remove the label from the box that says oranges and place it on the box you just pulled the orange from.
Okay, now the box that says apples can only be the mixed fruit box because we've already identified the oranges box. The box that did say oranges is then the apple box.
Orange Blossom