Next time you have a conversation with your smartest friends, you can impress them with some coolest facts they've probably googled at least once. There're many amazing things in the world as how our bodies function, weird-looking mushrooms or giant squids with the biggest eyes on Earth. Are you curious to find out more? For example, have you ever wondered why your hands, nose or feet get cold temperatures below zero but your eyes - never? Your eyeballs can somehow easily deal with the cold – even if you leave them completely unprotected. Here're 18 facts that will make you instantly smarter.

I’m twenty, and life’s becoming a virtue. I’ve just graduated from college! I’m officially a Master of Science now and thinking of becoming a doctor, but I’m not sure my Ma and Pa will be alright without me. They’re already growing too... young now, and I’m afraid they’ll get in trouble if I’m not there. Once, Pa went to a party and didn’t come back for three days! Got Ma worried sick, she gave him a huge slap when he finally turned up. They made up real soon, though. Youth is passionate, you know. I used to hate PE at school, but I love it now! Every chance I get, I go running in the nearby park, and even asked my parents to get me a gym membership for my birthday. It’s so good to feel those old bones creak less and less with every passing day! ... Confused? Wanna know what this is all about? Okay, have you ever thought of how life would be different if we were born old and get younger every year? We really love unusual what-if stories, and we decided to imagine what would happen if people aged backwards.

A huge whale-eating shark dominated the oceans millions of years ago. Its evolution has been the topic of heated debate among scientists for over 150 years. Until recently, a lot of paleontologists were sure that one of the most ferocious marine predators of our time, the great white shark, descended from the mighty megalodon. Well, recent findings are bringing this long-held belief into question.

What's the quickest and most effective way to lose weight and get the body of your dreams? Working out, sweating in the gym? How about fixing your eating habits? Adding some food that's essential for boosting your metabolism and skipping all the cheat meals and junk food. Have you ever tried seaweed? That's something your sushi was wrapped in and it turns out to be really healthy. This green ingredient may even help your body lose fat naturally. Let's see, how!

We've found Elves and Trolls! And you know what, they appear during thunderstorms. A strange glow in the sky, beautiful color but absolutely frightening - it's a transient luminous event striking in the upper atmosphere. What does it have to do with magical creatures?