“A brick could be put on the end of a scale, to determine if the other end of the scale holds a lie or the truth. (Hint: The truth is much heavier than a brick.)
”

“A blanket could be used to find the Brick of Truth. Many lies will be layered on the Brick of Truth to try to cover it up, but the blanket will cover up all the lies, thus covering up the cover up and thereby revealing the Brick of Truth. And don’t try to steal the covers, because the blanket will only provide warmth to the Brick of Truth. 
”

“A brick could be used to ascertain the truth. And then logically, a non-brick could be used to detect the lie. What kind of things are non-bricks? Well, anything from blankets to lies. So therefore, a lie could be used to detect a lie, and all this logic makes me want to grab a blanket and lie down—and that’s the truth. 
”

“cats on hot bricks could take hints from me”

“His whole life was a sham, a fairy tale. The truth hidden behind a wall of lies, each lie another brick in the wall until he probably couldn't see the truth anymore.”

“The ugliest truth, in the end, was still better than the prettiest of lies.”