These nine-piece puzzles are easy to play, but hard to solve. They feature original artwork, plus educational facts on the back of the travel-size package. Interesting fact:  In 1964, the general manager of Pontiac, John DeLorean, created the first “muscle car” by approving the installation of 389 cubic inch, 6.3-liter engine in the Pontiac LeMans, adding the designation “GTO” that had been a name first used by Ferrari, Europe’s leading sports car company.