Not just a problem to solve or a challenge to overcome, but a real antagonist. Someone who opposes what is good, threatens ...

For most people, solving a problem is the reward—the relief of being done, the achievement of having figured it out.

Professional mathematicians have been stunned by the progress amateurs have made in solving long-standing problems with the ...

Write a story in which the narrator refuses to tell the story. Permit the narrator to come close to telling the story—perhaps ...