A mathematical problem is a problem that can be represented, analyzed, and possibly solved, with the methods of mathematics. This can be a real-world prob...

Slang. a person returned to active work after retirement, dismissal, etc. a person retrained for a new or more modern job or task. Informal. a repeating, ...

A riddle is typically used to improve soil quality by allowing the gardener to sieve through soil and remove stones, twigs, large lumps of clay etc. and h...

Why are 1998 dollar coins worth more than 1997 dollar coins? Because there are more of them! 13. Kevin’s mother has three children. What are lateral think...

We will call a number “mirror prime”, if it is prime, and the number written in a reverse order is also prime. What do prime numbers mean spiritually? A p...

Bei Dao is the nom de plume of Zhao Zhenkai, widely considered one of China’s most important contemporary authors. His poems have been translated into mor...

Word games (also called word game puzzles or word search games) are spoken or board games often designed to test ability with language or to explore its p...

Negative Behaviour. How much television should a child watch?Limit screen time to 1 or 2 hours a day for children older than 2 years. The American Academy...

left armOn all short shots, the left arm is very dominant. Why do my chips go left? Either you are aimed to the left or your swing path is going left. Wit...

When you subtract any number from an even number, the answer is always even. It turns out even every time because if you start with an odd number, the squ...