One 18-inch pizza contains more pizza than two 12-inch pizzas - about 12.5% more. (Area: 18" = π·9² = 81π; two 12" = 2×(π·6²) = 72π.)

The world record for the most push-ups performed in one day is 46,001, set by Charles Servizio in 1993. On average, he completed 32 push-ups per minute for 24 hours.

A 2017 study found that wine tastes better when labeled with a higher price. MRI scans showed increased brain activity when people believed the samples cost more, a phenomenon known as the 'marketing placebo effect.'

Fewer than a dozen species of animals can recognize themselves in a mirror, such as great apes, Asian elephants, dolphins, orcas, and magpies.

Just like human thumbprints, dogs have unique 'nose prints.' Each one is distinct to the individual dog, regardless of breed.

Recent studies have found that individuals who perceive themselves as physically attractive also tend to believe they have a higher social status.

A recent study found that parents who use humour have better relationships with their children. Among those with humorous parents, 50.5% reported a good relationship, compared to only 2.9% among those whose parents didn’t use humour.