Short-term memory is finite and fills up quickly. Here are 7 ways we can free up space for clearer-headed mathematical thinking.

Differential equations are fundamental tools in physics: they are used to describe phenomena ranging from fluid dynamics to general relativity. But when these equations become stiff (i.e. they involve ...

What time does the clock show? Show puzzle solution Label the lower hand pointing left A, the higher one pointing left C, and the one pointing right B. Hands A and C are pointing exactly at hour marks ...

Emily Garman told Newsweek that her 10-year-old was "trying to be a little bit funny, but she wanted to make her teacher think.” ...

Brain teasers are fun little puzzles that challenges your thinking and makes you think various outcomes. These puzzles are simple to look but they always hide a twist that surprises you. Solving a ...

Even after backlash, Trump again echoed his words at a campaign rally. At his campaign rally in Iowa this week, Donald Trump once again broke new ground, becoming the first leading presidential ...

These lateral-thinking puzzles require some serious out-of-the-box thinking to solve. Are you up to the challenge?