True: A day on the planet Mercury is twice as long as its year. Mercury rotates very slowly but revolves around the Sun in slightly less than 88 days.
True: A full moon rarely shows up on Halloween, although Halloween is often associated with full moons. Full moons on Halloween over the past century have occurred in 1925, 1944, 1955, and 1974. The next full moon on October 31 will occur in 2020.
False: There are not 121 grooves on the edge of a quarter. There are 119.
True: There are 18 different animal shapes in the Animal Crackers cookie zoo.
True: If you add up all your blinks, your eyes are closed for an average 30 minutes a day. Blinking is like a quick shower for your eyes.