The word ton has several meanings. It can be a unit of weight, but it can also be a measure of volume, in which case the bricks are a lot heavier.TizzytheTormentor said:"What weighs more, a ton of feathers or a ton of bricks?"
The answer is both weigh the same, but it you answer quickly, you will instinctively say bricks right? Well a friend answered with feathers, we asked him why and he said "well, feather weigh a lot when they are together" What?
Beware that the metric tonne is a measurement of mass, rather than weight. In this case the feathers may have the same mass but because they displace more of the Earths' atmosphere they will weigh less. A blimp can have a mass of one tonne and have a negative weight.
You can also baffle people with "What weighs more, a pound of gold or a pound of feathers?" Because the gold is weighed in troy pounds, which are lighter than the more common avoirdupois pounds that the feathers would be measured in, the feathers will indeed be heavier.