The last letter added to the English alphabet was ‘J’. It was introduced in 1524 by an Italian grammarian named Gian Giorgio Trissino - before that, ‘i’ was used for both the ‘i’ and ‘j’ sounds.

The man with the world’s deepest voice can produce sounds that humans can’t hear. Tim Storms can’t even hear the note himself, as it is eight octaves below the lowest G on a piano—but elephants can.

Door knobs made of brass can disinfect themselves in about 8 hours. This is because brass contains copper, which has natural antimicrobial properties that kill bacteria and other microbes.

Marriage significantly raises the risk of being overweight, according to recent study. Men face a 62% higher risk, while for women, it's 39%, compared to the unmarried.

Approximately 25% of the population are 'supertasters,' experiencing heightened taste sensations due to a higher density of taste buds. Conversely, about 25-30% are 'non-tasters,' with fewer taste buds, leading to a diminished sense of taste.

In 1991, researchers at the University of Cambridge invented the first webcam to check if their office coffee pot was empty - saving them unnecessary trips to the kitchen.

Horseshoe crabs have bright blue blood, which is one of the most valuable liquids on Earth - used in medical testing, it can sell for around $15,000 per litre.