Take 5cc of the red and mix it with the blue. Here's where you assume that none of the red sticks to the spoon, it mixes instantly with the blue, etc. So they are equal. The Problem of the Bricks A brick weighs three pounds plus half a brick. The challenge has been delivered.
Lily Pads A pond has but one lily pad growing in it.
The following day, the pond has two lily pads. On day 3, there are four lily pads, and each day thereafter, the number lily pads on the pond doubles. On day 6, the pond is exactly half full of lily pads. Old fashioned thinking still works, Freda. The Problem of the Bookworm A bookworm makes his way to the bookshelf.