There is Reddit thread on little known facts, with some real gems. I have not run these through snopes, but they sound plausable:
- A small child could swim through the veins of blue whale.
- John Tyler, 10th president of the United States, b. 1790, has 2 living grandsons. 3 generations spanning 4 centuries. Tyler had a son when he was 63...and then that son had a kid when he was 75.
- The only member of ZZ Top without a beard is named Frank Beard.
- A compressed spring weighs MORE than a relaxed spring!
- Samuel Clemens (Mark Twain) was born and died on the tail of Haley's comet, and he predicted that he would die on that day.
- There are bags of poop on the moon.
- Apple computers are indeed PC's.
- The word "gullible" IS in the dictionary.
- Velociraptors were actually only about the size of a turkey.
- George Bernard Shaw is the only person to win an Academy Award and a Nobel Prize.
- Clint Eastwood is an anagram for Old West Action!
- A fly craps about every 8 seconds.
- Cat’s milk is 22% butterfat.