Prepare to have your mind blown by these real and yet incredible facts about our ever-mysterious world.

1. You Can't Hum With Your Nose Closed

Go ahead. Try it out. You can't hum with your nose closed because the humming noise needs air to pass through the larynx. Strange, right?

2. We Glow In The Dark

Apparently, humans glow in the dark. The bad news is that our eyes are not strong enough to see our bio-luminescent selves.

3. There Are Over 200 Bodies On Mt Everest

Yep. Some of them are even used as direction indicators by other climbers.

4. Newborns Can't Shed Tears

These babies can cry though, and the lack of tears is probably the reason why they scream their lungs out to get your attention. Tear ducts develop when the baby is three months old.

5. You Can Tell The Difference Between Hot And Cold Water When It's Being Poured

As it turns out, you can tell whether someone is pouring cold or hot water. Temperature affects the water's viscosity and hence the sound it makes when falling on any surface.

6. Bees Can Detect Bombs

With their tongues, bees can detect bombs. In fact, they can be trained for the role.

7. A Child Can Swim Through A Blue Whale's Veins

The largest mammal in the world also has the largest veins. No surprises there. Even more intriguing is the fact that it's veins are big enough for a child to comfortably swim through.

8. Only Humans Enjoy Spicy Foods

We have come to learn that as far as the animal kingdom goes, we have no equals when it comes to some things. Apparently, scientists have discovered that we are the only species that enjoys spicy foods.

No other animal likes this, and scientists can't find a single positive reason we do. This is truly a mystery. Maybe it has something to do with our legendary thrill-seeking behaviors.

9. Crows Have The Intelligence Of A 7-Year-Old

With their critical thinking skills, crows are as smart as 7-year-olds. That's far beyond the intelligence of most animals in the world.

10. Termites Can Live To Be 100

As far as longevity goes, insects got the short end of the stick in general, with many of them having lifespans that don't go past a few weeks. Some don't even live longer than a few hours.

But a termite queen can live to be 100 years. Obviously, other termites die out much sooner, but this special obese insect can outlive many people.

11. You Can Hear A Blue Whale's Heartbeat At 2 Miles

You would be lucky to have your loudest scream heard that far. But the world's largest giant has a heart that is more than double an average person's weight at 400 pounds. And yes, you can hear it pound from 2 miles away.

12. A Mattress Doubles In Weight After 10 Years

Due to dust and dust mites, a mattress keeps getting heavier from the time it's first used. Parts of the skin also keep falling on the mattress, which adds to its weight.

13. A Worm Eats Four To Six Times It's Weight In A Day

To begin with, a worm doesn't weigh much since it's just a couple of grams in weight. So, four or six times its weight might not seem like much.

But think about how much you would have to consume to eat four times your body weight in a day. That would be a couple of hundred pounds of food in a day for some people.

14. Half Of All Atoms In Your Body Are From Other Galaxies

We always hear of distant galaxies and fantasize about alien life. But the next time you want to see an alien, you might want to look into the mirror because 50% of you came from beyond this universe.

15. Dogs Can Indeed Smell Cancer

It's not a rumor anymore. Scientists have been able to prove that dogs have the ability to sniff out certain types of cancer. We can't pick up on these smells but our furry canine friends can.

16. In The Past Photographing The Dead Was Very Popular

Today we know of duck-faces and other photography poses as the trendiest ways to take photos. But there was a time when taking pictures of dead people was very trendy. The idea was to make it look like these people were still alive.

17. Why Some Airport's Three-Letter Codes Have An X At The End

There was a time when some airports had a two-letter code. But three letters were made the standard, and those that used two letters simply threw in an X to their existing codes.

18. Female Kangaroos Have 3 Vaginas And 2 Uteruses

In our world, that would be considered a medical abnormality. But among these peculiar marsupials from the land down under, this is the norm. Confusing, isn't it?

The vaginas on the side take the sperm to the uteruses, and the one in the middle is used during birth to bring the joey (baby kangaroo) into the world.

Thanks to the two uteruses, a kangaroo can be pregnant all the time. What's more fascinating is that male kangaroos have a two-pronged penis. So, it all adds up even if it doesn't make lots of sense.

19. The Oldest Chewing Gum In The World Is 5,000 Years Old

Yea, imagine that.

20. About 20% Of Coffee Mugs Have Some Fecal Matter

That's truly disgusting, and honestly, a little hard to swallow. But I guess it's a little comforting to learn that 80% of coffee mugs don't have this problem.

There is no denying it. Our world is strange and mysterious. It is also amazing in many ways.