Have you ever wondered about those quirky sayings your grandparents used to toss around? While those pearls of wisdom made sense during their time, some of these sayings seem pretty baffling now.

From dining table manners to strange warnings about health, these Tumblr posts raise questions about some classic sayings, among other things. With nearly 1.5 million curious members, their tidbits of information will surely amaze you.

As a kid, you must have heard people say, "Don't put your elbows on the dining table." This rule has been handed down through generations; however, it has become irrelevant due to changes in dining etiquette.

During medieval times, people sat around long, communal dining tables where a lot of people squeezed into tiny spaces or sat side by side chatting while enjoying meals together; hence, putting elbows on the table was impractical since it would make it difficult for people seated near you to eat comfortably.

Many of us might be afraid of swallowing gum, as folklore suggests that it sits in your stomach for seven years before it can be digested. But that’s not really true.

Naturally, gum is not supposed to be swallowed, as it can’t be easily digested or digested at all. However, it doesn’t mean that it remains inside the body. It is passed out as waste, just like anything else you eat.

Contrary to popular belief, your wet hair, as well as the wind or rain, are not the reasons you catch a cold. The flu is caused by different viruses that can survive on indoor surfaces like doors.

The common cold is mostly caused when you touch your eyes, nose, or mouth with contaminated hands. However, we should remember that cold weather can weaken our immune system, making us susceptible to viral infections.

The misconception that eating carrots makes your night vision significantly better is based on the fact that the vegetable is rich in vitamin A. However, while carrots can help you keep your eyes healthy, they won't grant you superhuman night vision.

Good health, especially eye health, depends on eating a balanced diet rich in different kinds of nutrients.

It's a fallacy that shaving causes hair to regrow darker and thicker. Shaving removes hair from the surface, leaving behind a blunt tip that feels coarser and looks thicker when the hair grows back.

Shaving, however, has no effect on the thickness, color, or growth rate of hair because these are influenced by hormones and heredity. The texture and look of the hair revert to normal as it grows out

The superstition that breaking a mirror brings seven years of bad luck dates back centuries and is rooted in ancient beliefs about mirrors reflecting the soul. It was thought that breaking a mirror would harm one's soul and lead to misfortune. In reality, the fear of bad luck from breaking mirrors is purely superstitious and has no scientific basis.

These Tumblr posts remind us that we shouldn’t blindly follow everything we see. When we question things around us, it helps us understand the world better.

What is one thing that you believed that turned out to be false? Share these fun tidbits with family and friends!